Any method of administration in which a small association holds authority is called Oligarchy.
Oligarchies acquire power from a money, army strength, social position and exercise control over citizens of the country. Communist revolution aims at establishing the philosophical, social, political, and economic ideology in which the ultimate goal is the establishment of the communist society.
In order to protect themselves from the communist revolution, wealthy people supports Oligarchy. With the helps of military support & government these association able to control such movements which calls for the redistribution of the wealth of rich people.