That doesn't mean people "have to conform", but that our treatment of people should not be diverse: it should be the same for everybody, and accomodating of their diversity within the bounds of acceptable behaviour.
RMS has been treated in the same way anybody else would be. He hasn't been given special treatment. We are therefore being consistent as a society in our treatment of him.
Right now, I can hear people already screaming about diversity of opinion, but they're missing the point: equality and diversity is not about a right for anybody to behave however they want, but for the treatment of those behaviours to be fair and equitable.
RMS has been treated fairly and equitably: he has not been arrested or imprisoned. MIT have behaved in a way consistent with any other employee, and FSF have been consistent with any other organisation trying to protect a public perception for a wider cause.
In this respect, he is not a brave contrarian warrior tackling an unjust society. He's a man who treats other people rudely and says things 95% of the population find unjustifably crude and offensive who has found himself at odds with clear and explicit employment law and codes of conduct.
