Depending on where it is in the product lifecycle, I've seen this extreme pushback against fixing symptomless bugs.
I was working on a project where someone thought to turn on tools for catching malloc errors (use past the end of allocated buffer, use after free &c.). The team that did this found bugs in their own code, of course, but also many from other teams.
I was there in the room as people went item-by-item litigating whether or not each bug should be fixed. Things like "sure this is use-after-free, but it's used immediately after the free and because of the struct offset, it can't corrupt the heap linked-list, so we won't fix it"