Unity of command is essential to the economy of time. Warfare in the field was like a siege: by directing all one's force to a single point a breach might be made, and the equilibrium of opposition destroyed.
Society cannot exist without inequality of fortunes and the inequality of fortunes could not subsist without religion. Whenever a half-starved person is near another who is glutted, it is impossible to reconcile the difference if there is not an authority who tells him to.