Dungbeetle:
You could conclude that the "crazy" governing body decisions have some colateral benefit.
Wrong dates: You need wrong dates to sustain an organization in a kind of emergency status for the 100+ years it takes to attract a significant number of people.
Blood Transfusion: Refusal of blood tranfusions may have saved as many lives as have been lost. (Who Knows?) Advantage: every member makes a life and death decision and therefore is more committed to the over-all effort.
Prison time served because of refusal to do alternative service: Strengthened the resolve of organization to avoid even the appearance of compromise.
It is clear that if JW's were only interested in members they would have an entirely different set of doctrines.