>> And with almost similar success rates, I find it hard to believe why anyone would pay that much money for very little more. The returns diminish really quickly.

The diminishing returns are irrelevant when your life is on the line and you risk losing your life. You just don't want to be that one

>> Also, you don't bribe people in the hospitals mentioned in the article.

Please re-read my comment. I was talking about corruption in state hospitals.