For the career idea, why not just make him a writer? He'd get fame both before and after, and after people would be more drawn to his books because of who he is. Now, for super-star egomaniac status, it's hard to tell, but I've been watching a lot of Castle *whistles* so it might be possible to pull it off.
"You need me. You wouldn't be much of a hero without a villain. And you do love being the hero, don't you. The cheering children, the swooning women, you love it so much, it's made you my most reliable accomplice." -- Lex Luthor to Superman, Question Authority, Justice League Unlimited
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