My system awards points for beating FBS opponents, but teams get more points for beating opponents who also have beat FBS opponents. I keep track of Power 5 wins to help with tie-breakers, but I don't use it as the primary metric since there are schools who don't have the opportunity to play 75% of their games in a Power 5 conference.
I'm trying to decide if it's more like multi-level marketing, a pyramid scheme, or Highlander