This sounds vaguely like the observation that retail checkout employees get stupider when the economy is good, because everyone with 2 brain cells to rub together moves to more gainful employment, and walmart has to really start scraping the bottom of the barrel
OK, maybe it isn't capitalism but US society that implies that promise. Many (insensitive) people respond to tales of economic woe by saying, "Get a job!" As if that's going to solve even your basic money woes. As others in this discussion have noted, many people employed full time still struggle to provide the basics. That part of the social contract just isn't holding up for a lot of people. And that's a recipe for social unrest.