Hurst, while I know it was (somewhat) tongue-in-cheek, your second and third paragraphs lose me.
The reality is, referees DO effectively rate/govern coaches' behavior already. Or at least, when necessary, they should. The reality is, many "lesser" officials are intimidated by certain coaches and their reputations.
As to accountability -- the key issue here -- coaches already are accountable to school districts, administrations, ADs, parents, players, media, etc. When their performance is consistently poor, they are asked to step down.
When was the last time an SCHSL referee faced THAT kind of scrutiny? Maybe, just maybe, it's time that started.