Licensing fees AKA royalties are not set in stone. They are subject to wide variance throughout the industry. Platform companies frequently use the offer of reduced per unit fees to entice third party publishers to their platform. Likewise the lower price points carry lower fees for things like Greatest Hits and for game introduced at much lower price points like Blowout or Chulip.
So long as the increase in volume holds promise of greater net revenue a reduced royalty scale is a trivial matter. Yes, it adds cost over the PC platform but that is seen as a minor toll when all of the conveniences of a strong console platform are considered. If it were otherwise Nintendo would never have been able to resurrect the console business in the 80's since control of third party publishing and the revenues derived from same is the most critical part of their business model.
So long as the increase in volume holds promise of greater net revenue a reduced royalty scale is a trivial matter. Yes, it adds cost over the PC platform but that is seen as a minor toll when all of the conveniences of a strong console platform are considered. If it were otherwise Nintendo would never have been able to resurrect the console business in the 80's since control of third party publishing and the revenues derived from same is the most critical part of their business model.