If you call 18 years on a million a year downside wasted potential then PLEASE let me waste mine...
I was just going to write the same thing. This guy had one of the longest and most financially successful runs in WWE history. He was always at or near the top of the card. Headlined multiple WrestleMania's and PPV's and feuded with every major star in the company. Guys like Big Show were never going to be "the man" the traveling and numerous promotional appearances would be too taxing on a seven foot 500 pound body.
He didn't need a belt. He was 7 foot 500 plus pounds. He drew a lot of money and made a lot of money. He had a long and decorated career. He will go down as one of the top 5 "giants" of all time if not top two alongside Andre so I don't see where he was 'wasted."