Having never heard of Dolton before, I certainly can't speak to their specifics. School systems can be pretty huge orgs requiring significant management expertise; no one blinks an eye when a CEO gets pay for similar responsibilities.
My kids went to a big football high school in Texas and it wouldn't surprise me if the admins there felt a lot of pressure around football. It generated a lot of money for the district and proceeds funded a lot of the arts programs (especially marching band which was huge).