One can certainly argue that no silly sports coach should make such an exorbitant amount when so much of the world suffers. The fact is, this is market value--extremely high market value, but market value nonetheless. What these extremely high paid coaches do with their money is on their conscience.
Yes, paying a football coach $17 million is justified if that person does a good job. The difference between a good coach and a bad coach is winning football games. Winning football games makes people give more money to the school. Winning football games makes more intelligent people want to attend the school.
I am a big college football fan, but it is an absolute joke that football coaches can get paid millions of dollars per year, especially at public universities. People should be outraged that so much of their tax dollars are going to football coaches. As much as I enjoy watching college football, it should not exist. Public universities should not be able to spend so much money on athletics.
No, I do not believe that paying a college football coach $17 million per year is ever justified. What people often forget is that football is game, and although it can bring a lot of money to the university, a coach can be fairly compensated for far less money that that.