This is my favorite Asimov story. It's got a protagonist with compelling motivations, a society that has problems but also convincing reasons why they persist, and a great ending.
mine too, because one of my favourite sff tropes is that the more you regiment society, the more you rely on outsiders and those pushed to the edges for any real innovation.
Two other Asimov stories that are similarly relevant to much of what is discussed on HN for similar reasons are “In a Good Cause—” and “The Dead Past”.
I don’t know of a link for the first. Here’s one for the second.