What I know is that when I'm sick and/or injured I want a well paid doctor who has spent 14 years in training taking care of me.
The reason your ambulance ride was 4k is because anybody who is even remotely able to pay subsidizes everyone who doesn't. Healthcare is systematically broken in this regard, here in the US because there is no universal coverage. Not because there are neighborhoods where doctors live.
Your gripe is with the ever increasing administrative burden on doctors and the burgeoning bureaucracy. Doctors and other healthcare professionals are worth every penny.
Actually, what's sickening is ingrates like you who begrudge experts their due.