I would argue in an ideal world money wouldn't exist but I think people have different ideals in that sense :)

I know some people _have_ to spend every penny because they need to to survive, but there are also plenty of people who spend every penny because they just have no discipline and buy anything they want without regard to whether or not they could afford it. Ideally the people in the former category would get some sort of welfare. Not sure what, if anything, to do with the people in the latter.