I have a gut feeling that the Board of Directors has no real power. They too are figureheads, simply seat warmers who rubber stamp what is decided by the guys who are really in control.
Exactly who the guys who are really in control are, is difficult to establish, as they are shadowy figures with no public profile.
They would be made up of Lawyers and Financiers in the main, and they would be non-believers in the concept that the WT is in any way God's Organization.
Anyone who is a Captive of that Concept would not be fitted to control and direct the Organization, they would be bound to make duff decisions. It is quite conceivable that at least most of the GB and probably all of the Directors are believers in the idea that it is God's Org.
Hence they are not allowed any real power. It is primarily a money making Scam, posing as a religion.