I see what you are saying frankie: The guy that preaches against lust all the time, is really repressing his own inability to control his sexual desires...etc, etc.
I agree on a personal level that holds true, but I don't know the GB as individuals enough to comment. Furthermore, the GB does not sign or take credit for any of their writing as individuals and I am pretty sure most of it is done by committee. Also it is not like the GB is coming up with anything new, these are moral codes and arguments that have been around for 50+ years now. They are just the enforcers.
Think about the dullard the GB would attract in the first place. Is their money in it? Fame? Sex? Freedom or even a grand sense of enlightment offered as reward? Nope... just the chance to be the puppet master for a few over-the-hill years. These are men who thrive in structure and take satisfaction in maintaing structure and being a part of it. That's all the GB has to offer a person. It's the Dwight Schrutes of the world now and will be forever.
I would guess that the individual GB members are quite boring and have little to repress if anything. They are simply trying to maintain the structure they psychologicaly rely on themselves to make sense of the world. This could honestly apply to a lot of people in the org.
But to get back to your point:
On Rusell, I would say he had a hard time comprehending a bigger God than what was taught to him or he found in the bible. I am rather certain that the reality that our lives are so greatly affected by the whims of other people's free will and natural events did not set well with him. The deist mindset while it is quite logical was upsetting to him. I think this is why Rusell became obsessed with shrinking God down to Jehovah a sentinent being on Alpha Centuari that had a set plan and time line. He needed God to be real in a tangible but very precise kind of way. All of his analysis and search for "truth" was because he simply could not live with the fact that it is impossible in this life (and maybe after) to have an objective answer to the eternal question. So he spent a like time synthesizing objective truth and hoping world events would prove him correct.
Rutherford, was an ego maniac and had trouble controlling his excesses for sure, women, drink, luxury cars and homes. So Rutherford's push to shun materialism, joy, and become an ultra-moral and pure organization was definitely more along the lines of the repression you speak of.