The problem then becomes that some of those dollars end up going to one person rather than 10 million people, and government effectiveness at distributing the m

The problem then becomes that some of those dollars end up going to one person rather than 10 million people, and government effectiveness at distributing the money across their population is inversely correlated with where the people that would benefit most from receiving a dollar live (this correlation exists within populations of countries with good banking systems too: your working person that wouldn't pick a dollar up if they saw it on the street probably gets a dollar automatically paid to them via the same system they receive tax rebates from, but many homeless people don't)