UL also seem to be more prevalent in groups that are somewhat closed to the outside, and those which look at the world in an us-vs-them way. The society is both of those, in spades.
Since leaving the organization, my BS detector is on a hair-trigger setting, and I demand proof of almost anything I am told. It is also interesting to note how easily people can get riled if you question their tall tale in any way, no matter how little proof they may have for it themselves.