The Iron Law of Oligarchy Term Analysis

This form of the vicious circle, where extractive institutions persist because the elite controlling them and benefiting from them persists, is not its only form. […] In a form that the sociologist Robert Michels would recognize as the iron law of oligarchy, the overthrow of a regime presiding over extractive institutions heralds the arrival of a new set of masters to exploit the same set of pernicious extractive institutions.

The logic of this type of vicious circle is also simple to understand in hindsight: extractive political institutions create few constraints on the exercise of power, so there are essentially no institutions to restrain the use and abuse of power by those overthrowing previous dictators and assuming control of the state; and extractive economic institutions imply that there are great profits and wealth to be made merely by controlling power, expropriating the assets of others, and setting up monopolies.