In THE EVOLUTION OF CRIME PART 1, the ‘Haves’ property has now become a gatherable, so what can they do? The ‘Haves’ could have gone back to sharing (on yer bike Chum!), but they didn’t!
Instead, they developed ways of guarding what they had, so they assigned some ‘peeps’ to enact rules, and others to enforce them.
Therefore, some smaller mankinders got jobs as Rule Makers and Guarding people, so whenever a Rule Breaker was caught, they had to be tried.