I'm cold and dead inside so once it became obvious that "the truth" was a lie I no longer had any connection or desire to remain in the cult. I was indoctrinated as a youth during the tail end of the period of pseudo-rational analysis of the scriptures (and at that time didn't have the critical thinking skills to recognize the rampant fallacy) so I always believed that my religion should be based on sound evidence. In the last 10 or so years I began to notice the rampant fallacy, but just calked it up to them simplifying things because it seemed that many in the congregation were of below average intelligence (or "humble" as it was once rationalized to me). During this period I was in denial and was using my own logical fallacy (appeal to consequence) to tell myself that it had to be true because if it wasn't it'd mean that the WTS had been lying to me and everyone I know for decades.
Once I finally got pushed far enough to do my own research and found concrete proof of their lies, it was all over. I never had any emotionally tramatic experience in the cult, it was all a rational decision for me - if they're right, then it's worth it to stay. Once I knew they were wrong it wasn't worth it any more.
Your point is definitely well taken, though. My wife's attachment to the cult is purely emotional. I've shown her a few things that affected me the most, but she just sorta brushes it off. It's not important to her to understand everything....it's just about doing "what's right" (what she's told by the WTS is right) and gabbing with her few friends after meetings. The sad thing, though, is that all her "friends" are really terrible people and she knows it. All but one has pretty obvious emotional or mental problems (bi-polar, hypochondria, etc) and the one that doesn't is possibly the most selfish person on the planet. But it's all she knows and she's driven by guilt to be at meetings and she needs the socializing that she gets there. What wakes her up (if anything) will be completely different than what did it for me.