It could be defined a number of ways. Google, for instance, has said in the past that they strive to provide accurate information but they are not a "truth engine". So the "right" results would vary across many different criteria, which Google already partly does with more personalized results based on things like location.

I'm really just wondering if there's an objective "good" to having the results displayed the way they are currently (a list of links with SERP features added in), as right now the vast majority of clicks go to the top results. (And also to ads, maps, SERP features, etc.)