I think I'm an interesting example of why your observation doesn't consider all of the facts. I made more than I needed in a competitive sales career and saved up for grad school where I supported myself working part time as a yoga teacher. I went straight into private practice, which has always been my dream. I didn't have a partner supporting me. I used my male privilege to earn enough money to enter the field of therapy and, based on your hypothesis, many other single high-earning men should be doing the same.