Remember that that pledge can be fulfilled by increasing employee (i.e. CEO) salaries, nicer buildings for the company, etc. That's what's happened at our local BCBS affiliate.
Doctors would say health care is expensive because of the threat of lawsuits which forces them to carry expensive insurance. It's easier for hospitals to price gouge when they're billing a faceless corporation instead of an individual.
> Including legal fees, insurance costs, and payouts, the cost of all US malpractice suits comes to less than one-half of 1 percent of health-care spending.