Sowell is a charlatan, Jennifer. He actually began as a Marxist. In '63, on the centennial of the publication of Capital, he wrote a journal article on the meaning of the book, that I think was quite good. Some time after that he became a rabid right winger and has spewed out nonsense ever since. I concluded a long time ago that he switched sides to mainly enhance his chances for fame and fortune. He is black. Black voices on the left are many; it can be hard to get attention. But by becoming a black conservative economist, he had the field pretty much to himself for quite a while.
If anyone knows any more details of Sowell's transformation (problem), I'd like to hear them.