Haidt is the Liberal academic who has shaken up the academic world with his self-analysis and self-criticism. He applies the tools of his discipline to his own stifling academic world. From Neili's Two Bombshells for Social Psychologists:
It is almost impossible to overstate the courage, intellectual clarity, and simple wisdom involved in Jonathan Haidt's challenges to his social psychology colleagues. His message is as uncompromising as it is uncomplicated: open up the discipline to viewpoints outside the narrow, left-liberal mainstream, learn from people who have political and moral views different than you own, treat religion more fairly, and stop acting like an insular tribal cult and act more like the open-minded science profession you claim to be.
Apparently it takes "great courage" not to think in lockstep nowadays, in academia. It's a fascinating essay.