In the coronavirus economy where 8 ounces of Purell now cost $75 (£58), masks have become the ultimate luxury product in that they are both unnecessary and very expensive. You look both foolish to be wearing one, and yet privileged to be able to. Celebrities and influencers take selfies in masks from the vantage points of their first-class airline seats. What's more, these masks are indicative of something more significant: They are a reminder that there will always be people who will have access to the most expensive, hard-to-find healthcare treatments. And there will always be those who won’t. Hand-washing and no-touching are weak weapons against disease when compared to money, especially in a country where millions of people are un- and under-insured. It’s turned out that face masks have the unique ability to expose our toxic class divisions, how much we distrust outsiders, how unjust and underprepared our institutions are, and how frail our civil society is and has always been.