What was the name on the belief system that considers wealth to be a measure of fitness

Social Darwinism emerged in the 1870s in the United Kingdom, North America and Western Europe. It takes its name after the English geologist and naturalist Charles Robert Darwin, famous for his evolutionary theory. As such, Social Darwinism was claiming the laws of natural selection and survival of the fittest could be applied to sociology. Economically speaking, the theory stated that wealth is a directly correlated with fitness and physical strength. Simply put, the rich represents the strongest, the poor represents the weakest.