note that an ideology on its own is not bad (or necessarily good). it's being ideological--adhering to an ideology against any and all evidence--that's bad. humanity, including science, economics, the arts, etc., is driven by ideology, ideas that take hold because of a tantalizing kernel of truth in them. progress (and regress) happens on the back of ideology.

the rational actor at the center of economics is an ideological construct that we act to always maximize our economic return. how we adhere, and the system adheres, to that ideal has been the focus of a significant strain of economic thought. behavioral economics is another ideological strain that focuses primarily on those deviations (perhaps as a dominant mode) rather than the adherences of the progenitor ideology.