That always seemed a bit odd to me as well, though I had a client a few years ago that had a points system where different referrals had points value (director

That always seemed a bit odd to me as well, though I had a client a few years ago that had a points system where different referrals had points value (director = 10, sr engineer = 7, etc.) which they could use to get cars, cash, etc. It seemed to work well but didn't distract employees.