User blog comment:Rupert2/Should we erase the "'incomeptent villains can't be complete monsters' rule?/@comment-27006713-20170205221847/@comment-2175012-20170205235841

They'd have to be competent, or at the very least know what they're doing is wrong. Take Ewell for instance. While he's by no means a criminal mastermind, he is smart enough to exploit the system in order to get Tom Robinson sentenced to death, even though he hadn't done anything wrong.