One thing I think we need to remember is that most of the GB at the time the extra corparations were formed were very old and frail,,which means they are not that sharp mentally(old and set in thier ways of thinking) and easily decieved. That being the case they would never really be able to understand all the details of such a move but would have to take these moves under advisement,and legal counsil,, someone who could explain it to a pretty near brain dead GB. They would never really be able to understand it themselves thier minds as a whole or body are not geared towards that stuff.
Who ever it is that the GB look to for advice in this area, has great power over them, and would know and understand thier fears,,which would allow for easy manipulation,,because that person or persons would know all the right buttons to push. To me it seems like we could see another Lawyer type take over similar to the legal eagle JF Rutherfords take over back in the early 1900s.