I'd like for you to outline why that's sad.
At the schools where they're making this the football programs bring in a metric **** ton of money to the district. They work a **** ton more hours than the average teacher. They give up ALL of their school-year weekends and the bulk of their summers year after year after year. The pressure that football coaches face at a high profile Texas high school are insane, not at all that dissimilar to college football coaches in either pressure or time put in. If they don't have a good game they have "FOR SALE" signs in their yards and then they get ****canned by mid-term if it's a poor season. Teachers, for the most part, get a free pass for life, with almost zero public scrutiny unless they're absolutely horrendous. The large bulk of the 6 figure guys are also athletic directors for the entire sports program, not just football coaches.
Football coaches have a drastically more important role in shaping young mens' lives than the average teacher they will have in their high school career. There are exceptions - there are some extremely influential teachers and there are some bum coaches, of course. Those coaches aren't the ones that make big money for long.