Comment by magicalhippo

Oh sure. Just wanted to stress that that's seldom the case. I see so many cases of wasted optimizations because someone thought performance mattered, leading to unnecessarily complex code or other maintenance issues.

In other cases, especially in my sector, it's simply that the customer values lower cost over absolute performance.

Of course, not saying you shouldn't be mindful of introducing an O(n^2) algorithm when an O(n log n) can trivially be used, or similar.