They beat all the compassion out of doctors in US medical schools.
In the Michael Moore movie on health care, he interviews doctors in France. Every one says they couldn't even be a doctor in a country where you have to turn away people that can't pay. (i.e. we don't have single payer health care like all other industrialized countries).
It made me realize that the design of our system is inherently greedy and produces greedy, callous doctors. In Boston I find about 75% of doctors are horrible people. You have to see 4-5 in a row before you find a decent person.