You don't have to be evil person to play evil characters. It's like cinema: you are an actor, and your character is your role. It's easier for you to play goodies/neutrals? Play them. Playing evil character (in CF) is a challenge. Judging by the situation in game, most of the players do not like challenge and playing to... I won't dig it deeper, why did they play. As I mentioned somewhere else, I would loose respect to myself should I play goodie at this time.