Primitive societies were a whole different situation. Most of them had no money. They had a very cohesive family and small community-oriented structure. In a situation like that, where everyone knows everyone else, people are inhibited from bad behaviour by the fact that they would be shunned by the whole community or outcast for it. And they are free of much of the stress and anonymity we experience in a modern civilization.

Most crime stems, directly or indirectly, from people's relationship with money...and the great disparities in people's financial circumstances. Where you have massive poverty, combined with a lack of good government, you have a high crime rate too.

Primitive people did not face those kinds of challenges. If they were poor, they were all poor together, and they worked together to address that problem. If they were prosperous, they were all prosperous together. That's why you didn't get much crime in those societies. It is gross financial inequality that breeds most crime.