It is possible that the root cause is an individual person being bad. This hasn't been as common recently because people were told not to be villains and to dislike villains, so root causes of the remaining problems were often found buried in the machinery of complex social systems.
However if we stop teaching people that villains are bad and they shouldn't be villains, we'll end up with a whole lot more problems of the "yeah that guy is just bad" variety.
However if we stop teaching people that villains are bad and they shouldn't be villains, we'll end up with a whole lot more problems of the "yeah that guy is just bad" variety.