When someone finds the real reason why they'll probably end up winning a Nobel Prize or being reviled as one of the worst villains in the history of neuroscience. Or both. (If the first then undoubtedly the second)
Why is because people just join cults. Not all of them, by any means (people or cults, works both ways), but many, possibly most. They join because they almost can't not join. It's deeply ingrained in people, seemingly nearly as deep as the need for food, shelter, and children.
Or, to put it more succinctly... "Just one of those things. Go figure."
Human's have a problem with using "self-hypnosis" to justify their lives and actions....it's called being a "true believer". It makes it easy on the mind to become a "true believer", because you no longer have to consider all the "myriad consequences and responsibilities of your path".
Look at the "cult of Jesus" or any "guru cult". They work by proclaiming that the followers are "absolved of all responsibility", which has been assumed by the guru.
Also, alot of people just need to feel like they "belong", so they seek out and join movements.
Do a google search for
"true believer", and you will find alot of psychological research on why people do this.
I'm not really a human, but I play one on earth.