It is always more fun to play a bad guy than to be yourself as you can create a character unlike your own and be someone you are not for a change.
“People come into public life for different reasons. None of us are ego-challenged, I think, or we probably wouldn't be doing what we're doing, so if anyone tells you that they don't like the sound of the applause and the ego gratification, I don't think they're being straight with you.”