I think this is more about the retaliation of "having earned it/more," for all the decades of sacrifice becoming a thankless-physician entails. Money is a simple metric for simple people, but yes, absolutely it's about the money to a lot of people.
I dropped out after the first year, because I realized I would self-delete (at some point) should I continue on the careerpath to physicianhood. I am so grateful to still be here, xx years later, doing anything else:
If you want to help people and/or make lots of money, there are dozens of other career opportunities to do BOTH more-easily/better.