They wanted to control humans. The first step toward that control was to understand how humans think, live, and change. The second step would be to use the scientific knowledge and to cause human evolution toward accepting Marxist principles. The idea of laissez-faire and less government brought a booming Golden Era to the United States by the 1850's. However, today our students are taught that capitalism is a very bad thing unless big government becomes involved.
Professors teach their students that capitalists survive by hurting other people.
William Graham Sumner, a former Episcopalian minister who became Professor of Political and Social Science at Yale in 1872, was most influential in popularizing Social Darwinism in America. In society that means that to lift one man up we push another down. The booming prosperity of the early 1800's caused feelings of jealousy and envy by persons who were less wealthy. Our public schools are teaching entire communities that competition for money is bad because it makes people unequal. They teach that unequal people are unhappy.