Each year I purchase a half-share in a CSA[1], which means that each Thursday from May to October I go to a local farm and pick up a wealth of fresh vegetables. By the next Wednesday, some of the vegetables are visibly starting to deteriorate, and that's
with refrigeration. Most of the time I finish all my vegetables during the week, but if I didn't refrigerate, I'd be throwing away a lot of food.
Perhaps I'm conforming to a cult of prosperity. Or perhaps I'm supporting local business, helping the environment by reducing food transportation, eating healthily, eating good food, and meeting local people with similar interests.
I think there's a tendency people have, especially prevalent on Hacker News, to do something unusual and cool, and then assume everyone else isn't doing it because they're stupid/conformist/etc. It's great to do something off the beaten path, but don't go that extra step and start making assumptions about people.
I'll also add that in the past, I've lived in some poor neighborhoods, and even very poor people who certainly aren't in any "cult of prosperity" in the US usually have refrigerators. I think this has more to do with the cost savings associated with buying bulk food than to do with any "cult of prosperity".
[1] https://en.wikipedia.org/wiki/Community-supported_agricultur...