There seems to be a conflation between non-cooperative behavior like aggression, and inequality. These two are not the same thing. Inequality can exist and incr

There seems to be a conflation between non-cooperative behavior like aggression, and inequality. These two are not the same thing. Inequality can exist and increase in cooperative settings. It's just that the inequality will not be zero sum in such settings, meaning the poor will see improvements in standard of living even as the rich see even greater improvements. That's the Pareto efficiency that experiments in game theory show that a free market produces.