However you want to characterize the behavior, the fact is that when money enters poorer pockets it tends to leave more quickly (I'd argue due more to need than anything). That tendency is what we need to rely on right now, more people spending = more fuel for the furnace. If people are spending money on things they don't need, well those things are probably not selling so well right now, so it's good for those businesses, helps keep more people employed, which keeps more money in those people's pockets, keeps them spending, etc. It's a chain reaction which is much, much easier to keep going than to start from scratch.