If you’ve worked in design you know the answer. It’s because everyone *will* care, just not necessarily in a way that is visible to you or even conscious to them.

Everyone can *feel* a misaligned UI, a juddering framerate, a garish sound effect, or a bland story. They just may not be able to *pinpoint* it. What they are able to do is move on, assume the rest of your work feels equally bad, and tell that to their friends.