Estimable utility functions themselves require the existence of agentic consciousnesses with well-defined, bounded goals. There is no evidence of this. The evolutionarily-optimal nebulously-adaptable fulfillment of needs and wants means a constant dance of homeostatic internal states of infinite possible configurations with other beings also participating (even without realizing) in the same gavotte.
Thus, a combinatorial explosion of infinitely-uncountable utility adjustment and maximization, ever in flux and doomed always to be beyond the grasp of any mathematical formalism.