You make it sound like all original ideas from academia must be cited all the time, even if that was not the source of someone’s inspiration.

If I’m in the private sector, and I rediscover something from first principles, it is not my responsibility to go search all academia to see if someone’s done it before so I can cite their work.

If I rely on a code library that doesn’t explicitly cite papers it was built on, it is also not my responsibility to go find all the papers that it might’ve been built from and cite those papers.