Wimpy was the best of his era, from the 50's to the early 70's. For about a 20 year period he was considered the best 9-Ball player by his peers. He was a lot like Buddy from the 70's to the 90's, a great tournament player and money player as well. I can only think of one player in the 60's willing to gamble with Wimpy and that was Harold Worst.
The same for Buddy during his reign, no one wanted to gamble with him. Even great shooters like Denny Searcy and Greg Stevens steered a wide berth around Buddy Hall. Buddy was giving weight to the world. Dan Louie is the only player who I ever heard of beating Buddy even. It was on an 8' table. He wouldn't play Buddy on a nine footer.
So no one is invincible, they are all human. But one or two stand out above the crowd in every generation. They are the ones who stand the test of time. Wimpy stood out in his era and Buddy in his. Their respective careers over lapped for a moment, but when Buddy was young he wouldn't tangle with Wimpy. And when Wimpy got old, he left Buddy alone. Great players who respected each other and their place in pool history.