Urban makes just under 6, Harbaugh on the other hand makes 7 mil.  
I'd like to buy the " success drives the money"  but the reality is in my mind that is wrong.  I have a daughter who was a D1 athlete, and she was successful.  At a school that necessarily was not in the sport she played.... ( yea it was a big 10 school ) 
I have first hand seen the disparity from program to program and conference to conference, and it exists in all sports, mens and womens.
It's college!!  If you think the $$$$ spent does not play into buying success........  I know you are way smarter than that.   Sadly I have seen it first hand.    
Kids will go where the best coaches are, they will go to the school who has the newest facilities, and where the most $$$ are going to be spent on them.  That is a fact sadly. 

P.S.   I'm not seeing anyone yet who is going to beat Bama anytime soon either.
I see it like this, I like a lot of teams out there, but I tend to like under dogs.   Which right now has me really liking WI, even with the loss at MI  ( which to lose by 7 at Ann Arbor ) is quite respectful.