What about nepotism and favoritism? It happens all the time. People hire their friends and family members, even if others are just as qualified or even more qualified. I think this is discrimination but it is rarely spoken about.
I just interviewed for a job. One of the other applicants clearly knew the employer from before. More than likely, that person got the job. It's unfortunate, but that's how it works. People call it networking, but it's nepotism and favoritism. It's a form of discrimination really.