If you would have told me 10 years ago that organic produce, meats, and dairy would be commonplace in a Walmart grocery store, I would have laughed, but here we are.
Conversely it is only through large government subsidies of corn and soy that we have all these cheap, non-nutritious soy and corn byproduct snacks that fill 80-90% of grocery store isles, of which the free market, driven by consumer demand for something different, has now started to penetrate even the snack isles. For example, pea snacks are all the rage now, and I see way more pea snacks, pea crisps, etc than ever before at my local chain store.