Ideologies systematically distort world models by introducing a fictional normative prior ("good and evil"). This warping makes it effectively impossible to correctly assess the material effects of policies, and to comprehend all other world models. Ideologues are always pawns.
Religions force you to accept that there is a particular kind of certainty, a sacred purpose, even though it cannot be rationally derived. If you give up this certainty, something infinitely bad happens: everything is meaningless. If you keep it, you cannot discover rationality.