I would expect Google to have better engineering discipline than Amazon or Meta.
So you either hope that others will be inspired to do better by your example, or you become a gatekeeper who loses respect because nobody likes to be lectured by someone who isn’t walking the walk.
olladecarne's story lines up very well with my own experience working on a post-startup-acquisition org at Google.
To an extent then, if the original authors are still around, they were either appreciated or feared, but you probably won’t know which just from the interview. If they split it may be good riddance.
I do have a couple of mystery cases where I believe that someone who previously thought very highly of their own work had a change of heart, and realizing what they’ve done and how hard it would be to fix it, have decided it would be easier to start over someplace else. That may be true but I would recommend that it’s a character building exercise if you at least try to clean up your mess before leaving. There will be other messes, from other blind spots.
>adding a single line anywhere feels like playing Russian roulette
I worked at a company where all 4 founders were still there (15 years in) and that was very much our reality. I think the founders still cared, but that didn't matter - beyond a certain size (>100 employees), the majority of the people in the org didn't care the same way.