Instead, they recognise different leaders for different roles - as we often do in urban society. Humans commonly split power between chief executive and chairman, or between prime minister and monarch. There is a streak of egalitarianism buried deep in the human psyche. Some evolutionary psychologists suggest that we can thank the invention of throwing weapons. If a chimpanzee wants to topple an alpha male, he must fight him in unarmed combat, at considerable risk of injury.
Humans can make do with a well- aimed rock, arrow or bullet.
The biggest social difference between human beings and chimpanzees is economics. Human economics is all about exchange - of goods, services, information, currencies. This exchange is almost the defining feature of a human society. Power in most societies is largely acquired through wealth, which in turn is acquired through profitable exchange. Chimpanzees have no divisions of labour.