I'm surprised no one noticed BD using floor instead of flaw
and I do have to agree with Scar, while assassins do kill for money, it doesn't make them the lowest life from around.
Looking purely at SW, there are many lower levels. For instance Palpatine, Tarkin, Vader.
They killed in cold blood on a massive scale, and more often then not the reason was to keep the populace terrified and under their control.
and there are plenty more...