The greatest jobber in the history of professional wrestling was
I don't believe that I ever saw Arnold win a match, yet he was a tremendous fan favorite. He would also be used as cannon fodder when they were building up some sort of drama.
(For example, when Buddy Rogers and Johnny Barend defeated Johnny Valentine and Cowboy Bob Ellis for the NWA U.S. Tag Team Championship Arnold substituted for Ellis in the first fall, because the Cowboy's "plane had been delayed." Rogers "broke" Arnold's leg with the Figure Four Leg Lock to win the first fall and allow Ellis to make a grand entrance in the second to save Valentine who was fighting alone after they carried Arnold out on a stretcher.
Arnold was also the smartest jobber from a financial standpoint and used the money from his humiliations on the mat to buy a stake in the WWWF when Capitol Wrestling broke away from the NWA. He wound up being a silent owner in the WWWF, managed a number of wrestlers, and handled the bookings in upstate New York. He was also in charge of handling Andre the Giants contract.
It just goes to show you that winning isn't everything in pro-wrestling!