He genuinely does wish to heal the world, to right the wrongs of the past, to save all of the beings and creatures from war and greed and devastation, but in achieving total dominion of the world, he cannot see that is the exact evil he sees and wants to cull in everyone else.
The theory argues that Sauron sought to enslave everyone on Middle-earth so that he could use them as a bargaining chip in exchange for Morgoth — who was defeated at the end of the First Age of Middle-earth — to be released from his imprisonment.
Sauron wanted complete control and order of all Middle-Earth. In his beginning he was not truly evil, he was just some divine being with OCD. It was when he was seduced "to the dark side" by Melkor/Morgoth that he learned to hate and fear (which further fed his hate) and truly became evil.
After the War of Wrath, dramatized in the pilot episode of Rings of Power, Tolkien wrote that Sauron wanted to redeem himself. He went to another Maia named Eönwë “and abjured all his evil deeds.
Unless you are not well-versed in your pop culture, you know Sauron is the main villain in JRR Tolkien's 'The Lord of the Rings' and Peter Jackson's trilogy in the book. Sauron, briefly, appears in 'The Hobbit' trilogy as well. Sauron is one of the most well-known villains in pop culture.
While the book version of Sauron is Pure Evil, due to being a manipulative sadist, which was shown in The Silmarillion, his lack of personality and motives in both the Ralph Bakshi and Rankin-Bass movies renders him as not even close to qualifying in those versions.
ANSWER: J.R.R. Tolkien all but completely ruled out the possibility that Sauron might return as a Dark Lord to trouble Middle-earth. Sauron had placed most of his “native strength” in the Ring, and when the Ring was destroyed Sauron was reduced to an extremely weak spirit incapable of taking physical shape again.
As it turns out, even after forging the One Ring, Sauron was still capable of feeling fear and regret. Actually, even during the War of the Ring and at the height of his power.
After the War of Wrath, with the downfall of Morgoth and the destruction of Thangorodrim, Sauron adopted a fair form and repented his evil deeds in fear of the wrath of the Valar.
Morgoth's power far outstripped that of Sauron, at least at the beginning. Therefore, it is evident that Sauron did not regret serving Morgoth. He embraced evil and darkness as his own, and he pursued his goals with passion and cunning.
To win the elves over, Sauron goes to Eregion disguised as Annatar, the Lord of Gifts. He helps Celebrimbor and the other smiths gain an even higher mastery of their crafts, but he leaves once they begin crafting the Rings of Power. The Three Rings of the elves are made last.
In The Lord of the Rings, it is said that had Galadriel chosen to use her powers for evil instead of good, she would have been even more destructive and terrifying than Sauron himself. Galadriel was the greatest and most powerful of all Elves in Middle Earth in the Third Age.
Sauron began his days as Mairon (“the admirable”), a powerful Maia—spirits who came to Arda to help the Valar shape the world. (Other Maia include Gandalf and Saruman.) He was a pure and orderly being in the beginning, who studied the craft of forging. But he grew selfish, and eventually aligned himself with Morgoth.
Sauron's deepest fear was that Aragorn would use the Ring against him. With its powers of domination, Aragorn could comfortably take over the entirety of Sauron's dark army. Though this would eventually corrupt Aragorn, it would allow him to destroy Sauron and take his place.
For a brief time, Sauron repented of his evils and even sought to heal Middle-earth. Yet, that didn't last long. In trying to heal and order Middle-earth, his pride got the best of him. He was the only one who could properly order the world.
She leaps off the ship taking her away from Middle-earth, encounters Halbrand, and eventually saves his life, and in the process, accidentally helps bring Sauron back to power.
Sauron's identity was kept secret throughout most of the season, but it was revealed in the season finale that Sauron is actually the character we know as Halbrand (Charlie Vickers). He was adrift when Galadriel found him, and appeared to be genuine in his remorse (or at least regret) for his actions under Morgoth.
Death and Return
The Witch-King is tracked down and temporarily slain along with the other Nazgûl. His corpse was buried in the high fells but all nine of them were revived by Sauron who was growing in his power within the abandoned fortress of Dol Guldur, calling himself the Necromancer.
Sauron Tries to Get Galadriel on His Side
All the things he said to Galadriel were to manipulate her so that they both would wind up exactly where he wanted them to be. In order to heal Sauron's wound from the battle, Galadriel takes him to be healed by elves.
Sauron appears most often as "the Eye", as if disembodied. Tolkien, while denying that absolute evil could exist, stated that Sauron came as near to a wholly evil will as was possible.
Galadriel Was Ashamed Sauron Tricked Her
The fact that she had saved his life, become his friend, and potentially even developed a little bit of a crush might have just been too shameful for Galadriel to share immediately. There could have also been a darker reason that Galadriel didn't want to confess the deception.
His biggest mistake, obviously, was his failure to realize that someone might try to destroy the Ring. This was his tragic flaw, in creative writing terms, and is the reason there's a story at all. He didn't guard the Sammath Naur or Cirith Ungol properly.
The Dark Lord easily overpowers her, and after Galadriel rejects his proposal to join him, he traps her in illusions and leaves her to drown in the water.
However, in the Return of the King, Gandalf explains that when the One Ring is vanquished, Sauron will be "maimed forever, becoming a mere spirit of Malice that gnaws itself in the shadows, but cannot again grow or take shape.
In the final minutes, Sauron confesses that he's been manipulating Galadriel since they first met — using her as a way to get back to Middle-earth to fight back against his enemies in the Southlands and indirectly form the land of Mordor but also to get closer to Celebrimbor and the Elven smiths.