3) A Feeling of Victimization.
Certainly people who’ve been genuinely victimized aren’t evil. However, many folks walk around nursing grievances the size of asteroids when their legitimate complaints amount to a pebble. These tend to be some of the nastiest, vilest, most despicable people you’ll ever run across because they feel justified in “fighting back” after having their “victimization.” A man’s wife says something he doesn’t like so he thinks it’s okay to smack her in the mouth. Others think their company treated them unfairly so they feel justified in stealing from the cash register. They don’t feel like it’s fair that they’re poor, so they feel entitled to sell drugs to kids. Some of the most malicious people you’ll ever run across never blame themselves for anything and perpetually feel as if they’re being victimized by invisible, malevolent forces beyond their control.