I was thinking...
Anyone who receives a large amount of criticism starts to doubt themself eventually.
So, unless the Governing Body is receiving power from another source (eg. Heaven, and most of us here would doubt that), then I would think that they have to start to doubt themselves.
For example, the Wizard of Oz, I'm behind this curtain here, pretending to be powerful, but I'm really just a frail old man, who has no special power. My influence is a sham. (Crossing over to the GB) Am I really receiving direction from Jehovah, it doesn't feel like I have any special insight or power from God. I mean I hardly read my Bible, and all I do is sign off on some articles from time to time.
Come to think of it, it's not the GB that matters about doubting themselves anymore, they have so little power, it's the writing and service committees.
taoInit
Just thinking out loud...