I've encountered this before with absurdly high job requirements paired with a low-moderate commensurate salary. While on call with an HR rep for a listing I had loosely met, I deduced from their responses it was done so the company could claim their talent needs aren't being met domestically, and thus would file for more H-1B or H-2B work authorization permits. This is rife with its own issues of non-transparency and offshoring, where I likely encountered it in the later stages[0] and was being paid lip service to the process without the intent of hiring.
[0] https://flag.dol.gov/programs/H-2B