If you don't learn something about yourself when you've been taken for a fool - and if you then don't work to fix it - it's just a matter of time before you get fooled again. And usually in very much the same way.
Here's a pretty strong rebuttal to guys like Will Westmoreland, whose thing is not to get the rubes to admit they were wrong, but just to admit they were lied to. ie: Victimized