People respond to incentives. If people are not building higher-quality apps, then it's because there is not adequate incentive to do so, or because there is not adequate disincentive to not do so.

But I don't have to like it. I don't have to cheer it on. I win nothing, by encouraging them to waste their time churning out more buggy apps, just to show me some concept that I am perfectly capable of imagining in my head or reading off of a diagram or a screenshot in 30 seconds.

We don't need 10 buggy apps that do the same thing. We need 5 developers working on two different apps, that do the same thing, well. Otherwise, we will never get out of Perpetual Prototype Hell.