A key problem is upper-level academia is rife with the same sorts of human-scale power dynamics. Petty squabbles, ideological (and ideological-flavoured) views can and do hold entire fields from time to time. It is only a particular type of tenacity that breaks up the status quo from time to time. (consider the Marvin Minsky era of AI research. A big personality can stifle an entire field). Peers aren't usually the appropriate measuring stick of merit.