Unless you upgrade your compiler and now your climate model produces different results... I think "good enough" is actually pretty rare unless it's for games or something.
"Games or something" is the majority of floating point work. There are far more video games and 3D renderings and people working on these technologies than climate models or scientific computing.
[citation needed], at least for the "people working on them" part.
“There are far more people doing [thing that I personally do] than [thing that I do not personally do, and thus know fewer people who do it].” — everyone ever