Because we, the consumers, demand speed over accuracy and slurp up political nonsense as much as we seem to complain about it. If we didn't do that, the model wouldn't have changed.
The bigger issue is they spend a lot of money and resources on defense and still get steamrolled by good offenses. So, in that light, yeah it's a waste of money.
Go out and put up 50 a game with a god tier Oline and weapons and dare people to keep up with you.