Becoming a medical professional is very expensive; tuition often going into the six-figures. Becoming a physician takes a good decade or more of your life. The entry process is very competitive and limited, with majority of applicants being rejected. IIRC the acceptance rates are below 50%. Once a person clears those hurdles however, they are now faced with a torrential abuse of corruption, racism, fraud, elitism, favoritism, etc. that they must overcome.
Much of the medical field is like this unfortunately, it's not just doctors. Take for example this article about Duke's Nursing School and racism: https://archive.is/DIJ98. From what I've heard through third-party, corruption at Duke is at an all-time high. This is just the stuff we hear about too, so I'm sure these problems affect all of the top-tier colleges that nobody reports so they don't get ejected from these programs.