[lores]

A company the size of Facebook has far more than enough resources to know that different ads have different requirements, if only legal ones, because moral ones seem hopelessly quaint. I, a know-nothing engineer not working in HR or advertisement, would have raised a question to Product asking whether job ads had to be excepted from the regular optimisations and advertised equally to everyone. Why didn't Facebook think about it? The answer is they did, they just chose to ignore it because money is more important, or at least the perception of choosing money over morals or legality.