Has everybody read Mick Karn's autobiography "Japan and Self existence" where he outlines how Japan worked. Nobody could veto any decision, however the singer, David Sylvian, would manipulate band members by having hissy fits till everybody gave in and "saw his side". A dictatorship by any other name.
Personally I can't do dictatorships, my thinking is that a "group" contains many who each have equally valuable input. The last band I played in the saxophonist (who would turn up with keyboards even though there was a keyboard player) would tell everybody what to play, including the drummer. He would tell me what riffs to play even though what I was playing was clearly better than his idea.
I walked, as did the drummer shortly afterwards.