In my last job, I was as picky as you, OP. But when it came to fixing all the findings, we were told to only fix potential bugs, and leave all the violations of the coding style guide in place. I especially hated it, when people write code, that doesn't even fit on a full HD screen with a small font. Like what were they thinking? I would be ashamed to deliver such code. The real fun begins when you try to do diffs side by side with such a mess.
I also felt like i was too picky all the time, because nobody else seemed to care, but on the other hand, this software was low-level code for devices peoples lifes depend on.
You probably don't want to know what shitty code is inside health devices like pacemakers or insuline pumps and what not.