I think its a combination of how we've been indoctrinated, and what I believe is the human nature to follow someone or something they percieve as being bigger than themselves. The indoctrination part goes without saying, especially for born-in members of any fundementalist religion. Constant study and preperation for several meetings, and group pressure to perform. You've been trained to perform like a domestic animal for scooby snacks.
The other part though, about people needing to follow and pay homage to someone bigger than themselves I think is why we defend God so much. For instance, if you ever get a chance, check out some hip hop message boards. Those threads get sooooo heated due to different fans defending their favorite rappers. They even have a name for it, "Stan Wars". Stan being the name of the obsessive fan that Eminim rapped about some years back. So these stans argue back and forth over who's the greatest rapper ever, who sold the most albums, yada yada yada. Now these fans aren't getting a dime from their artist and in a couple years these same fans will have a new favorite rapper they'll feel the need to defend. Another example, look at the political threads on here. If I do a thread on why Sarah Palin would look better with a perm, her defenders will get at me. Vice versa, if I do a thread stating Keith Olbherman is really black, but has vitiligo, his supporters will jump on me. They've never met either one, but they hold strong opinions on these characters, and feel the need to defend these public figures too. Another thing, remember when Jennifer Anniston got her hairdo changed some years back? Women everywhere got similar hairdos!! Her stock went through the roof at that point, remember?
It's the same way with God. I've never met Him, and as you stated will never meet Him because I'm only part of the Great Crowd. But He's bigger than me, and so I feel the need to be in awe of Him, despite this nagging feeling that I need more evidence of His existance. I've been trained to defend Him, and indoctrinated to believe in Him, and so I feel threatened by anyone who speaks ill of Him or has a view about Him that differs from that of my own. As LongHairGal mentioned, it often takes 30 years or so to figure out that something might be wrong, but by that time you hate to consider your time defending God as a wasted investment, so you trudge along. The indoctrination is so deep, that you feel guilty even considering that possibility.
By the way, since we're talking about hair, I hope the WT makes the same mistake that the girl from Felicity made when she cut her hair too short, and the show tanked as a result. This generation and worship of the faithful and discreet slave might be the clippers starting to cut.