Social Darwinism is literally the most popular belief system in the US (and many other countries) aside from some Christian morality. It is popular among rich, poor, and in between.
Most are thinking to themselves "even though I don't have as many advantages I will still be able to make it some day because deep down I a, special". So that belief system helps rationalize self-worth.
Most are thinking to themselves "even though I don't have as many advantages I will still be able to make it some day because deep down I a, special". So that belief system helps rationalize self-worth.