I have to agree with LisaRose.
All people, including each of us, have an instinct that keeps us from second-guessing ourselves. We learn from an early age that fire is hot, gravity will pull us down, eat too much food--even if we like it--will make us sick, etc. Once we establish basic fundamentals we don't second guess these things. We even build on them. Later if someone tries to get us to touch fire, or the equivalent, we won't believe them.
Normally this works out fine. But it can go astray with personal convictions. They don't have to be religious either (take Marxism and Nazism for example). Once we accept something as true and believe we are right, we get entrenched and invested in the idea. Someone comes along and tries to tell us different, we will refuse to believe.
We can all remember some time other than being a JW when we may have stubbornly refused to admit we were wrong. We may have even balked against the best evidence and sat in denial in these cases. Eventually we came around, but it was hard to admit we were wrong, no?
Now remember how convinced we were as Witnesses. What would that have looked like if you had more invested in it than you did? Would any of us have left as comparatively easily as we did?
Now think of the present Governing Body, how far beyond the original plans, hopes, and beliefs they have taken all this. Good grief, it is 2016! Jesus originally "returned" in 1874 and it was supposed to be over in 1914, and it is now far beyond that. Even with the revised "before the generation that saw the events of 1914 passes away," that generation basically perished. The original Governing Body is gone. None of them are around. Franz is long dead. They are asking for money in a televangelist format, sold DUMBO, and have a Bible and Tract Society that virtually does not produce printed materials anymore. And on top of that, "overlapping generations"? Overlapping generations, people! What the f#*k?!
Deluding themselves is all they can do now. To think you are leading people astray and that God isn't responsible for making you think up such silly fodder--what is the alternative? Can these humans survive if they suddenly woke up to the reality that they are teaching millions of people stupid things that have no basis in reality? They aren't even good religious beliefs, as far as religion goes. Can the psyche even deal with such crushing acceptance of how wrong and off course you are if you are a GB member who suddenly snapped into realizing the real truth of it all?