I like your idea Rebis, but I have two problems with it.
1) There wouldn't be any candidates left. Anyone who runs for a position like that is inherently mad/unstable. I know three parliamentary candidates and their psychological insecurities are what make them do the job (and indeed do the job well). Actors and writers would have the same trouble I guess.
2) If they aren't mad to begin with, they certainly would be by the end. Power corrupts, and fame makes barmy. Now give someone a famous position of power...