Dear Vidiot, I think you are right that a lot of the motivation for this comes from the questioning arising out of the increase in Memorial partakers, and as has been discussed on other threads it gets them out of various other tight spots too.
The problem is ,it is not very visionary, they do not seem to see the problems they have created at all. As with the Generation change, they will find themselves having to wriggle and change words and interpretations as these problems are pointed out.
I believe Cedars analysis of the quality of men on the GB is spot on, and I would think they are all "Captives of a Concept", i.e believe their own B.S
I also hold the belief that behind the GB the Legal Dept and the Heavies on the Writing Comm. and people of that ilk have a great influence on doctrine change when it becomes necessary, some changes in the past may have been done just to give them something to write about, but the latest ones have been thrust upon them.
The problem is that these string-pulling pupetteers in Legal etc, though they may have a better education, maybe have spent more time in the real world,maybe as well are able to stand back a little and look at things, they too have come up through the ranks as believers of WT crap to some degree, and they too are not necessarily the sharpest tools in the box, and certainly have a vested interest in not letting a really smart Bro usurp their position.
Hence the mess we see today, no forward vision, only reacting to problems as they occur, so we have a Blundering Body as titular head of a Silly Cartoon religion.