People controlling small percentages of wealth is called an oligarchy. Countries that have this according to a list I found include Russia, China, Saudi Arabia, Iran, Turkey, South Africa, North Korea, Venezuela.
The countries in which only a small percentage of people control most of the wealth are:
Based on the given question, we can see that this is a system of government which is known as oligarchy and the country are ruled by only a few elites who are very wealthy and powerful.
Read more about Oligarchy here:
https://brainly.com/question/3710019
