There's a weird cultural meme that's convinced the middle class that the road to wealth is saving. The road to wealth is earning. This is just kind of an obvious thing, but I guess there are benefits to convincing people who will never earn enough to be wealthy that there are attainable ways to go about it. I'll tell you this much, if buying an iPad makes you broke, then not buying that iPad sure ain't gonna' make you rich.
This meme is just kind of annoying as it relates to the middle class, but it's downright dangerous when applied to the poor. It's useless to apply ideals of thrift to people making minimum wage, a level of earning at which no amount of saving can cover even predictable periodic expenses.