Utility, Price, Pleasure

Bentham's Utilitarianism is often recognized to be isomorphic to Smith's system, perhaps as a generalization of the latter, perhaps as representing its essential structure.  In either case, according to his doctrine, the Utility of a market exchange is expressed in the price paid.  But, according to Smith, the price paid expresses an equilibrium between Supply and Demand.  Thus, the degrees of pleasures to the participants in an exchange are perhaps tempered in the achievement of equilibrium.  Therefore, the presumed correlation between Utilitarianism and Capitalism exposes a flaw in the former--its Atomistic Hedonism, which entails that the quantification of Pleasure in one person is independent of that in another.