Hi Jst2laws,
I'd say that the most devastating teaching is that God speaks through the faithful and discreet slave. I remember talking to a friend about the molestation issue. I mentioned Erica's case and described what happened to her. Although he was sympathetic, he asked me what did I think the Governing Body thought about this situation. I told him I didn't know since I was unaware of any comment that they made on the case. He took that to mean that I no longer had faith in the Governing Body. He was unable to side with the victim in this case because he has been so thoroughly indoctrinated to believe that the GB are God's spokesmen that he is unable to reason apart from their influence. Rather than sympathizing with Erica's plight in all of this he took the side of the Governing Body.
So when an injustice is committed by some non-jw, the Witness is outraged and expects that God will one day bring retribution upon the offender. Yet, if the Governing Body were to commit a similar crime or even to cover up serious wrongdoing in the congregation, then the sense of moral outrage is glaringly lacking. Then the average Witness goes into defense mode. That is scary because it shows how deeply the average JW is under the control of the faithful and discreet slave. It's my opinion that if the average JW realized that the parable of the FDS was nothing more than an illustration by Jesus of the responsibility of each individual Christian, then the authority of the GB would crumble. So, that's why the GB fights so hard when their authority is called into question. It's a matter of survival.
Mr. Shakita