 A third variation of the criticism says that the profit motive signals the absence of more appropriate motives. Kant argued that actions only have moral worth if they are performed for moral reasons, or, more specifically, for the sake of duty. Thus it is not enough that we do what is right, we must also do it because it is right (Kant 1785). Another relevant Kantian principle is that we never should treat others merely as means for our own ends, but always also as ends in themselves (see also  Kant’s moral philosophy).  Both of these principles seem to contrast with the profit motive which therefore is rendered morally problematic (Bowie 1999, Maitland 2002). It should come as no surprise that Kant was a strong critic of several examples of “commodification” and other market excesses (see also  markets).