I don't follow your argument at all. Are Dr. salaries propped up in some way? I'm not aware of it unless you're talking about Loan forgiveness which is provided through a few programs. Other than that, the market determines what they make. People need health care which creates a market. People pay Dr's for their services, if you're a good Dr. and people like you and you work hard, you can make money. If you're bad and people don't like you, you make less and often have trouble finding a job. Sounds like a market to me. I don't know what going to school or studying harder has to do with propping up salaries.
Now if you're talking about the insurance industry, that is another thing altogether.