Totalitarianism
This is the tyrannical dictator's system of choice. Wildly popular among fascist states and royal monarchies around the world because it seizes and maintains power the easy way -- by brute force.
Still ruthless rulers become role models that their subjects aspire to be - due to wishful thinking or delusions of grandeur, or both.
These leaders are excellent examples of the true nature of human beings just being human. Left to its own devices, it's human nature run amok.
Totalitarian regimes have always been the dominant political system throughout history, and it will be the inevitable one that all the other systems will eventually descend into.