More concretely: Amazon's drivers (arguendo) don't care what they're getting paid $15/hour to do. If Amazon removes the incentive for antics, then it can pay 14

More concretely: Amazon's drivers (arguendo) don't care what they're getting paid $15/hour to do. If Amazon removes the incentive for antics, then it can pay 14/15 the per-delivery fee, and each driver can do 15/14 the deliveries and still make $15/hour.