Ok, so psychopathy, despite common sentiment, is just lack of empathy, "moral restraints" and higher than usual rationality in a person, right?
Question: how's it rational and beneficial for me as an individual to just go and kill someone just for the hell of it. They are told to be good at manipulation... Which is consistent with the lines "cold and rational". Going around and killing and torturing rats, cat, quirrels, dogs and subsequently, people isn't