I’ve heard humanity described as being composed of “self-interested, rational economic actors” to help us understand economics.
Like, we all want the eggs from the farmers’ market that were laid by the happiest hens. A farmer can assume we’re rational & self-interested when pricing her eggs so she can try to sell enough of them to make a living. $2/egg won’t fly because stores sell them so much cheaper.
Think I’m saying morally bankrupt, anti-social hoarders have rational self-interest but so do normal people like you & me. I’m fizzling out here but either way hoarding’s bad :)