But the end result is still the same, as long as you are a non-revenue pax, no matter what kind of passes you were on, when there is a last minute revenue pax, even a revenue pax on standby don't have a seat, the first available seat or last seat of the flight will still go to that revenue pax.

It is only about you put yourself earlier for the NRSA list, but it doesn't guranteed your place on the list will stay the same til the end, any employee with a higher senority can still trump you anytime.

There is really no difference than revenue pax on standby, they go with the person with the highest elite status first, then fare class, then checkin time.