(I have no empirical evidence to back this up, but...) When I was a dweeby high school kid in Academic Challenge and chess club and band, I would occasionally find myself on the receiving end of some teasing. Whether it was rational or not, I would occasionally get moments of existential anxiety, convincing myself that I would die penniless and alone. If people don't like me now, then they probably won't like me in the future, and boom, I'm dying of some otherwise-preventable cause.
Our system of life is based in no small part on existential fear of death from want. Grade school kids are told if they don't learn to write cursive then they'll never do well in middle school, which means they won't get into honors classes in high school, which means they won't get into a college or get a good job, and they're pretty much doomed. How fucked up is that? Even I, as a doctor with a doctor spouse, face the realistic possibility of losing enough economic power that poverty could happen.
People in a society with sufficient public and/or private guarantees of the basics of life don't have to deal with such fears. People in Canada can be assured that as long as the government of the nation exists, they will have state of the art medical care. The concept of dying because you don't have the economic power to get yourself some lipitor is completely off the table, just like foreign invasion is completely off the table for the Swiss.
True security is a powerful thing. It makes all those little daily anxieties go away to know that your basic needs will always be cared for no matter what.