There's this pervasive idea that capitalism is competitive and selects the best products, weeding out the inferior ones. I disagree. Often the superior products fail, and the ones that rip you off succeed. That isn't the rule, exactly. But just look at snack bars. Your local store selects the snack bars that are not good for you. As in restaurants, you're forced to live with other people's poor judgment. The bars that are good for you? They systematically disappear, often entirely discontinued. Why? Well, use your imagination.