I have no idea. If you don't like his last three films, it's understandable not to be a fan of him as a director, but the man is important to cinema regardless of the quality of the Star Wars prequels.
Without him, there would be no CGI in films. He was the guy who is responsible for CGI becoming a mainstay in film.
Without him, digital cameras would be nowhere near as sharp and advanced as they are now. He pushed the development of high definition cameras more than anybody else in the film industry.
And without him, there would be no Pixar. LucasFilm is where Pixar was conceived.
I don't know about you, but that makes him A-Okay in my book.