One thing I think we need to remember: these guys on the GB have given a large part of their lives to the cult, to stop believing is too emotionally painful for them to give way to doubt now. They are too involved they are in too deep they have too much to loose, this acts like a heavy weight on their declining mental capacity. Just like a person who has selective memory they repress anything that brings doubt to the surface and so in order to have mental comfort they keep suppressing any nagging doubts. The more they have to loose the stronger the hold.
It is easier to keep on believing and rationalizing than it is to face the truth and admit to themselves they have wasted their lives and given up so much on a worthless religion the mind will preform great acrobatics in order to keep in the comfort zone.
http://tip.psychology.org/festinge.html
Cognitive Dissonance ( L. Festinger )
Overview:
According to cognitive dissonance theory, there is a tendency for individuals to seek consistency among their cognitions (i.e., beliefs, opinions). When there is an inconsistency between attitudes or behaviors (dissonance), something must change to eliminate the dissonance. In the case of a discrepancy between attitudes and behavior, it is most likely that the attitude will change to accommodate the behavior.
Two factors affect the strength of the dissonance: the number of dissonant beliefs, and the importance attached to each belief. There are three ways to eliminate dissonance: (1) reduce the importance of the dissonant beliefs, (2) add more consonant beliefs that outweigh the dissonant beliefs, or (3) change the dissonant beliefs so that they are no longer inconsistent.
Dissonance occurs most often in situations where an individual must choose between two incompatible beliefs or actions. The greatest dissonance is created when the two alternatives are equally attractive. Furthermore, attitude change is more likely in the direction of less incentive since this results in lower dissonance. In this respect, dissonance theory is contradictory to most behavioral theories which would predict greater attitude change with increased incentive (i.e., reinforcement).
Scope/Application:
Dissonance theory applies to all situations involving attitude formation and change. It is especially relevant to decision-making and problem-solving.
Example:
Consider someone who buys an expensive car but discovers that it is not comfortable on long drives. Dissonance exists between their beliefs that they have bought a good car and that a good car should be comfortable. Dissonance could be eliminated by deciding that it does not matter since the car is mainly used for short trips (reducing the importance of the dissonant belief) or focusing on the cars strengths such as safety, appearance, handling (thereby adding more consonant beliefs). The dissonance could also be eliminated by getting rid of the car, but this behavior is a lot harder to achieve than changing beliefs.
Principles:
1. Dissonance results when an individual must choose between attitudes and behaviors that are contradictory.
2. Dissonance can be eliminated by reducing the importance of the conflicting beliefs, acquiring new beliefs that change the balance, or removing the conflicting attitude or behavior.