How come some celebrities like charlie sheen act like total losers while other celebrities?

because charlie sheen is an alchoholic, drug and sex addict. he clearly loves the attention he's getting, so why stop when all you have to risk is your image? seriously, he has zero class. celebrities like that think that they are at the top of the world, and do no wrong. brad pitt and george clooney, on the other hand, are very classy, nice guys. you never see a bad tabloid about them.