Neutral Evil
From Dragons Exodus
Neutral evil is pure pragmatism without honor and without variation
Neutral evil characters do whatever they can get away with. They are out for themselves, pure and simple. No tears for those they kill, whether for profit, sport, or convenience, and they have no love of order and holds no illusion that following laws, traditions, or codes would make them any better or any more noble. On the other hand, they do not have the restless nature or love of conflict that a chaotic evil villain has.
Some neutral evil villains hold up evil as an ideal, committing evil for its own sake. Most often, such villains are devoted to evil deities or secret societies.
Career criminals, particularly those who harm others for money, such as hitmen, are the most obvious example of Neutral Evil.