The rest of the time, we just have a very hard time abandoning our beliefs. (I know It'd be hard for me to admit that functional programming is not superior to class based programming most of the time, even in the face of compelling evidence. I'd be likely to search for an escape hatch first.) It's truth that's important, but, probably because of the mind projection fallacy, we mistake our beliefs for truth, and therefore holds our current beliefs dear, which is rather silly when you think about it.
By the way, if being dropped in other bubbles compels you to find stronger arguments for your own, beware that those stronger arguments may actually be unjustified rationalizations. That would be a bad thing. Better change your mind in that case.
Fortunately you can train: http://wiki.lesswrong.com/wiki/How_To_Actually_Change_Your_M...
I'm wondering if we might not be better off if fairly frequently we do get exposed to the best arguments against $MY_IDEOLOGY, and not get trained into the idea that $MY_IDEOLOGY is the one true correct ideology.
Beyond such, being dropped into a bunch of other bubbles will probably force you to come up with stronger arguments for your ideology, which is, all in all, growth and arguably a good thing.