This one-sided statement shows a lack of respect for your own product.

It’s also wrong as a matter of economics, and wrong as a software development strategy. The lower quality product might sell well today but not lead to more sales in the future. The lower quality software might ship today but cripple future feature development due to technical debt.

Of course, going the other way (quality is everything, sales are nothing) is even more wrong. The truth is of course somewhere in between and depends entirely on your specific business, but going all the way with “product quality is only as useful as the sales it creates,” which is more or less identical with “give customers the least quality product that they will actually buy,” is a recipe for a fly-by-night company that robs its future to feather its nest in the present.