Ideology is not just about empirical facts, it's about moral ends as well. Why would those of left-wing academics be more "accurate" than those of anyone else?

Ideology is not just about empirical facts, it's about moral ends as well. Why would those of left-wing academics be more "accurate" than those of anyone else? In fact, academics (like all other groups) should be expected to have unique class interests, that conflict with the interests of other groups in society.