 A sixth, broadly Marxian sort of objection rejects the project of defining art as an unwitting (and confused) expression of a harmful ideology. On this view, the search for a definition of art presupposes, wrongly, that the concept of the aesthetic is a creditable one. But since the concept of the aesthetic necessarily involves the equally bankrupt concept of disinterestedness, its use advances the illusion that what is most real about things can and should be grasped or contemplated without attending to the social and economic conditions of their production. Definitions of art, consequently, spuriously confer ontological dignity and respectability on social phenomena that probably in fact call more properly for rigorous social criticism and change. Their real function is ideological, not philosophical (Eagleton 1990).