They stand to profit regardless. USPS actually makes their lives easier. UPS&#x2F;FedEx would be taking on a huge expense trying to properly service remote (rural) areas to the level of the USPS. If they can sit on top of it via partnerships (FedEx, at least, already makes use of USPS for last-mile delivery on some delivery tiers), they can focus on their high population density and global logistics business instead.