probably the first proto-humans who were like "hey what if we all lived in a cave together" there was probably some guy who was like "we should hang meat in the cave to spite the bears" and everyone was like "if we do that the bear will come in the cave" and he was like "nuh uh" and then he hung up meat in the cave and kept doing it when nobody was looking so the rest of the proto-humans had to kill him to stop him from putting everyone at risk. a society where we use the law instead of having to kill people to prevent them from ruining society is better tbh.