Inequality of people was the result of the development of tools of production, increased efficiency of land cultivation and the appearance of surplus product. Inequality was born with a change in tribal relations, the separation of more famous and revered people from others, and the endowment of them with more influence and wealth than others. It is, of course, good when someone is respected more than others for certain merits, hard work, skills and qualities. But when this respect causes an unequal redistribution of wealth and property, social inequality appears. The tribe is divided into noble and non-noble, rich and poor. This difference only increases with time — the rich become richer, and the nobles gain even more influence in society. The rich and noble receive an even greater share of the spoils. They make captives slaves and make them work for themselves, thereby increasing their own well-being.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.