at some point, there is a conscious decision to exchange the truth for the lie
Had I not been a JW for 23 years, a hardcore Kool-Aid drinking Bethelite, I might would agree. However, in my own case, I never once made a conscious decision to join (or remain in) a cult, something false. All of my Watchtower activities and support were done, believing 100% that I had the truth and was doing God's will.
So, for me, these twelve men are doing the same thing. Sure, just like the rank and file, they may differ on some minor point of dogma, but their belief in the overall concept that the organization is run by God is unwavering in my opinion. Moreover, it is the product of the Mind Control/Cult tactics put in motion before most of the current GB were born.