I don't know, does a decent human being give money to homeless people? How much does a decent human being tip waitresses? Does a decent human being help out their friends/family in times of financial need? Is it even truly decent to hoard any amount of wealth at all, as opposed to giving it all away to people in much more dire need of a single dollar than you are? And what of the more abstract psychological costs of being a decent human being? What if, for some people, being decent goes against their nature, their level of emotional advancement and awareness, their true reflexive emotions? I suppose the saying "It costs $0.00 to be a decent human being" is just another memespirational quote. Funnily enough, I just finished slightly revising one of my essays, https://philosophy.inhahe.com/2020/11/30/seeing-most-inspirational-and-motivational-quotes-and-messages-as-spam/ .