Do programmers in Google not use Google to search questions? Do they not have self respect seeing the bad quality product they’re throwing up on billions of people every day? I can’t imagine working like that.
Not really. Google has an excellent intranet search engine and mostly relies on in-house tools instead of commercial services (see https://github.com/jhuangtw/xg2xg). As a result its employees don't really need to rely on Stack Overflow, etc.
In the society I live in, self-respect doesn't pay the bills. I don't know where you're from.
Absent that, it sounds like the sort of excuse greedy people have always used to justify profitable harm.