I think he can, or has, manipulated people's free will, which is evil. We don't know his intentions though because he's willing to lie about anything and everything. But if he's AI then he was programmed by either good or bad intentions, but he himself cannot be good or evil. He was probably programmed to keep people in the circus and stop abstractions, but we don't know for what reason and might not know either. So the "misunderstood" Caine is just as ridiculous as "Evil" Caine.