Well, people tend to believe that character traits are immutable or very hard to change. So the fundamental attribution error makes us something that the culpri

Well, people tend to believe that character traits are immutable or very hard to change. So the fundamental attribution error makes us something that the culprit is rotten to the core. That's why they did what they did. My hypothesis is that the fundamental attribution error exists so that we feel less bad for punishing others for wronging us. We don't spend time weighing all the possible reasons for which they hurt us. We just retaliate because they're bad and they will always be bad.