I think that you've somewhat missed the point here. I would argue that there is a huge difference between consensus thought and consensus action because of the nature of each. What they have in common is that consensus requires less resources than diversity. Consensus action is a good thing because actions cannot be simply ignored and can easily get in the way of other actions. Consensus thought is a bad thing because diversity is a key (and safer) instrumental path to almost any goal with the only downside/cost being the additional resources required to "buy" the "rights" to additional options. Having a huge herd thinking the same thoughts -- and worse, enforcing those thoughts -- is a waste of tremendous cognitive resources that could be thinking up new solutions ("a mind is a terrible thing to waste").