Ignored often: $$ at the lower end make a much bigger difference than same $$ at the higher end. Tax wealthy individuals a few hundred $/month extra, and it'll

Ignored often: $$ at the lower end make a much bigger difference than same $$ at the higher end. Tax wealthy individuals a few hundred $/month extra, and it'll hardly be a blip on their radar (although they might make a stink politically). Give poor people a few hundred $/month extra, and it could transform their lives. In short: those $$ have a much higher ROI if spent on the lower end of the population. And thus a much higher bang-for-buck when trying to maximize a population's overall well-being.