“And the meaning is simply persons who are super powerful because they are super wealthy. And it is the use of wealth power as political influence that has always defined oligarchs throughout history.”

'Oligarchy' is being used more to describe American society. We ask one professor why

“It is in this absence that oligarchs can influence indirect political actions, especially since they are not (typically) elected officials and cannot be removed from office.”

Defining Oligarchy: The Fusion of Wealth and Power in American Democracy