Why is TV fascinated with people being violent, hateful, deceitful and rotten to other people? Answer that and you have the answer to this question.
Here is the way I think it works. Executive approve shows they think people will watch. They measure the results of that assumption. People watch what interests them. Based upon how many people watch they get more subscribers or sponsors at a higher rate. The more who watch, the more money the owners make. The more money they make the executives get to keep their jobs.
So tv is not fascinated with anything but getting viewers. Viewers are to blame.
Why do most of the video games involve violence?