That's because doctors are basically extremely well paid labor. Their income is forever tied to hours-worked. This is especially true of highly specialized fields like orthopedic surgeons, because they can't transition to private practice and leverage their brand by bringing in apprentices and taking a cut of their revenue. They're always stuck working for some big organization that is hamstrung by insurance reimbursement rates and such. Yes, they will make a lot of money, and if they're smart they'll invest it outside of the industry (like real estate or whatever) and set themselves up for financial independence or early retirement. But most don't do that, or if they do, they do it poorly, because they're too busy working their main job, and because the skillset that makes a good surgeon doesn't generally translate well to a good businessperson or investor. So, they're stuck working long hours and living in a state of emotional purgatory. They have all the fancy things that one associates with wealth, like a big house, expensive car, maybe a condo in Hawaii or Vail, but they don't get to enjoy them much until retirement. I know a bunch of really successful doctors. Most are not very interesting or engaging people until after they retire.
If you want to make big bucks and still live a fulfilling and enjoyable life, there are other fields that can provide that. The most wealthy and happy people I know run real estate brokerages, law offices, or financial services companies (investments, lending, insurance, etc...). They work hard, obviously, but get to set their own hours, be their own boss, and their skills are broad, which allows them to invest the income from their main business in ways that they are typically highly successful.