I disagree with the OP. But...
George Lucas thought that Star Wars was just going to be another movie in a long line of films he would make. Like he has said before, he hoped it would make enough money so he could make his next movie. He never thought it would be his legacy, and probably never wanted it to be. So on some level he must resent Star Wars at least a little.
The success of Star Wars also set him on a path that contributed to the dissolution of his marriage and the loss of a huge part of his fortune.
I think at one point he really wanted to make the prequels - you know, the one's about Obi wan Kenobi's hubris resulting in the seduction of Anakin Skywalker to the darkside and the eventual fall of the Republic. It's too bad those movies never got make
I think by the time the 90s rolled around he was lukewarm on the idea of prequels. It had been a longtime after all. What got him excited again for them again was, unfortunately, the special effects revolution exemplified in Jurassic Park. Coupled with the success of Heir to the Empire and it's sequels, George must have released that Star Wars was still a goldmine that was not being tapped and could help rebuild his fortune. "And why shouldn't it?", George must have thought. "I made people really happy with these films. Don't I have a right to profit from them?" So ultimately the entire prequel trilogy does not work because:
- It tells the wrong story
- overemphasis on CG special effects
- they were made for the sake of making money first and foremost