Ha! I practice good commit hygiene---even when no one's paying me---because it's useful to my future self, but I don't think pride in one's work (especially through importing workplace best practices) is a great reason, especially not a normative one. I think this is like the proverbial carpenter finishing the back of a drawer though no one will see it. It's done for the carpenter's sake, out of principle or mundane Calvinism, and I wouldn't begrudge a carpenter who didn't. And the latter might sell more furniture.