The same argument for teachers/coaches can be made for nurses, law enforcement, and other first responders, etc. None of them are paid what they are "worth". From an economic standpoint, no one would willingly pay someone more to do a job when someone will do the same job for less (i.e. supply and demand). As long as enough people are willing to work for current wages in these fields, in many cases out of the goodness of their heart or at significant personal financial sacrifice, the government and corporations see no need to raise wages. Unfortunately, the nonmonetary, societal benefit that individuals in these fields provide is often not recognized (coming from the spouse of a 35+ year educator). When we wake up one day and have a drastic shortage of workers in these fields, our society will be in big trouble, let alone high school football.