I could be wrong, but these are my impressions:
I believe as Ray Franz said, the GB are still “captives of a concept.” They believe that the organization is God’s sole channel and thus can do no wrong. The decisions made as a small collective body also allows them to not accept individual responsibility.
As DD said, likely all nurtured sociapaths and narcissists. Such an effect is only natural given the cause: their rise through the organization as company men to the top spot where they are surrounded by sycophants where as a body they have no checks and balances, no transparency. They are religious rock stars who live in an insulted bubble.
I don’t know enough about Sanderson as he’s kinda the new guy.
Lösch seems old and tired and barely hanging in there.
Judging from Herd’s disposition giving the talk about the layoff of fulltime servants, he felt worn out. I wonder if he’s struggling to maintain his belief while wrestling with reality catching up.
Jackson seemed like a true believer at the ARC, arrogant and condescending, and at times a deer in the headlights when confronted by people smarter than he.
I believe Morris, Lett, and Splane are all truest believers, which is what makes them dangerous. I suspect Splane in particular has an elevated view of himself as a scholar and a composer…he is likely the brainchild behind the overlapping generation and the new musical direction the organization is taking.
Of course, I suspect they all individually have an authentic self, a side of themselves that sometimes manifest that is quite apart from learned sociopathy and narcissism. I also think that had we rose through the organization and ended up on the Governing Body that we ourselves might manifest the same negative tendencies they do. As JWs, that was "that is what some of us were."
By that measure, it might be that it is not so much as a “rise to the top”, as a descent to the bottom. The organization is a pit and the Governing Body are in the deepest part. It’s a long climb out of the hole they have dug for themselves.