There are many versions of Kantian ethics and even more supposedly Kantian objections to Consequentialism. By considering three of the more sweeping and influential objections, we shall see that there are general conceptual difficulties with Kantian responses to consequentialism, and Kantian consequentialism in particular. We consider, first, the significance of the Kantian deontologist emphasis on the principle of respect for persons. Second, we explore the relevance of Kant's distinction between price and dignity, his conception of the dignity of humanity, and Hill's interpretation of the dignity principle. Third, and last, we focus on Kant's related formula of the kingdom of ends, and consider Rawls’ development of Kant's idea in his hypothetical social contract theory and more general Kantian constructivist conception of moral reasoning.
Keywords: dignity, Hill, Kantian constructivism, kingdom of ends, moral reasoning, Price, Rawls, respect for person, social contract