Nature is not democratic and nature is no about utility and markets. Nature is very aristocratic and all about plutocracy. The idea that someone deserves something in terms of monetary value for effort expelled is a belief, yes, and a valid one, but not rooted in any objective reality. It is a subjective humanistic belief, like an aesthetic, or a taste acquired for wine...it is not a biological reality like the necessity to drink water or perish.
The idea that we live in a free market is false. We do not. Even in economics we are well aware that we live in a monopolistic economy...not monopolistic competition, a monopoly, and a monopoly is always part of a plutocracy, hence the idea of free markets principle in an ethical consideration is vacuous, cold, and illogical.