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.
Separation of church and state is a requirement for pluralism, which is a requirement for coordination without violence. Capitalism has emerged as a temporary local optimum on a trajectory of the rules for negotiation of the conditions of human survival.