Men like Richard Farnsworth, Slim Pickens and Ben Johnson were all legitimate cowboys and horsemen who got lassoed into Stunt work. Then via fluke, luck or Gift of God - plus some undeniable Charisma - became well known Actors/Stars.
Surely none of 'em would have thought less of themselves - or their lives - if they had stayed in the esteemed profession of Cowboy/Horsemen/Stunt work.
This being said, the fraternity of Stunt Artists has always somewhat of a shadow industry/profession in film making. We know these Stunt guys (and gals) are there - (Stunt Artists work in nearly every film and and in many TV shows) - but Movie Makers shine as little light on these necessary Artists as possible. Why? Because they don't want to spoil the grand illusion that it really isn't Robert Redford and Paul Newman jumping off that cliff - or John Wayne smashing through that bar room window - not to mention the thousand of other perilous acrobatics we witness in nearly every movie - and have been for a long, long time.
Yet the respect accorded Stunt Artists is also evident - as when Stars perform their own stunts - it is always well publicized as a daring (if not foolhardy) feat - discouraged by those who fund the films.
Wikipedia: "Born, Louis Burton Lindley, Jr. (June 29, 1919 – December 8, 1983), known by the stage name Slim Pickens, was an American rodeo performer and film and television actor who epitomized the profane, tough, sardonic cowboy, but who is (possibly) best remembered for his comic roles, notably in Dr. Strangelove and Blazing Saddles.
Pickens ... was an excellent rider from age 4. After graduating from High School he joined the rodeo. He was told that working in the rodeo would be "slim pickings" (very little money), giving him his name, but he did well and eventually became a well-known rodeo clown.
After twenty years on the rodeo circuit, his distinctive Oklahoma-Texas drawl (even though he was a lifelong Californian), his wide eyes and moon face and strong physical presence gained him a role in the western film, Rocky Mountain (1950) starring Errol Flynn. He appeared in many more Westerns, playing both villains and comic sidekicks to the likes of Rex Allen, John Wayne, Steve McQueen, ... many many other Stars."
The rest is history ... Hollywood style.
Tip 14: Never stand in front of the cannon