We are all fools to some extent - to be totally alienated from fools is to be alone.

I'm not sure that when problems are systemic that everyone swayed by that system, knowingly or unknowingly, is a fool by the definition you mean. Not being foolish in this regard is only something you can be constantly vigilant about, you can't master it. You can never say "I am not such a fool." If you do, you increase your chances of being what you despise.