This psychologist takes a part another convenient representation of human nature that "explains" and justifies the system of capitalism. Dr. William E. Rees has written:
From a systems perspective, we might say that our current “unsustainability” is a product of the natural system…McMahon argues that such views are a product of a narrow group of people from capitalist academic institutions. She writes:
There are certain behavioral adaptations that helped our distant ancestors survive—and thus those predilections were passed on to us. But those same (now ingrained) behaviors today are decidedly not helpful in solving our sustainability crisis—they have become maladaptive.
…we habituate to any level of consumption (once a given level is attained, satisfaction diminishes) so the tendency to accumulate ratchets up. This is particularly so if we perceive that another social group—or country—is “getting ahead” faster than we are.
The values of Homo Economicus are deadly to the planet. But it is dangerous to confuse the dysfunction of humans impacted by global free market capitalism, with the norms of human psychology or psycho-evolutionary biology.