What 'disrespect he's taken from the organization' are you talking about? It's professional football.
I think Mike Tomlin is an excellent coach, a genuinely good person, and a great leader. However, how he has managed his team, specifically the quarterbacks over the last couple seasons has been atrocious. I will not be convinced that any quarterback on that roster would not have done a better job than Big Ben last year. It’s extremely obvious that Tomlin lets his stars walk all over him. He mishandled Antonio, bell, ben, etc.
The disrespect went all the way back to the draft when big Ben was all butt hurt that they took Mason in the third round and thought he needed to address it in a news conference.
To parade around this broke down dinosaur around they set back the development of other quarterbacks on the roster.
Sure, MR had a chance to go out and take it. But they never set him up to succeed. One of the worst OLs in football and they did not adjust their schemes to fit his strengths.
Maybe disrespect is not the right term, seriously mismanaged maybe? For Pittsburgh standards they have been a dumpster fire the last few years.