I think maybe the classic formulation was by David Hume in "Of the First Principles of Government," where he pointed out that "Force is always on the side of the governed." Whether it's a military society, a partially free society, or what we - not he - would call a totalitarian state, it's the governed who have the power. And the rulers have to find ways to keep them from using their power. Force has its limits, so they have to use persuasion. They have to somehow find ways to convince people to accept authority. If they aren't able to do that, the whole thing is going to collapse.