Oligarchy:
Oligarchy (from Greek ὀλιγαρχία (oligarkhía); from ὀλίγος (olígos), meaning ‘few’, and ἄρχω (arkho), meaning ‘to rule or to command’)[1][2][3] is a form of power structure in which power rests with a small number of people. These people might be distinguished by nobility, wealth, family ties, education or corporate, religious or military control. Such states are often controlled by a few prominent families who typically pass their influence from one generation to the next, but inheritance is not a necessary condition for the application of this term. [Wikipedia]
Noted in “The Real Reason The Elites Keep Killing Single-Payer,” Caitlin Johnstone, Medium:
If you say that America is an oligarchy (and it certainly is, which we’ll get to in a second), you’re not merely saying that there is too much money in US politics or that the wealthy have an unfair amount of power in America. Per definition, you are saying that a small class of elites rule over you and your nation, like a king rules over his kingdom.
An interesting article, incidentally.