One of my readers was scheduled for surgery to have his veins scraped out. If you are wealthy or have very good health Insurance coverage, you are at greatest risk. You'll be cut, drugged and bled to death, literally. You want the best, but it's hard to be sure you're getting it, so you will settle for the most. Expect the full treatment.
Surgeons vary widely in competence.
There is no way to tell the best from the worst, no matter how much money you have. There are about 360,000 coronary bypass operations in the U.S. every year. I said Fourteen Billion Four Hundred Million. If you are a piece of meat with money, you can expect several coronary bypass operations, each more devastating than the last. You'll play chemical roulette, not knowing the more drugs you take, the shorter your life.