When Dan/Gable lost the biggest upset of the 20th century, he used it to fuel the most dominant Olympics ever. Or to be more precise, I guess he felt sorry, moped around, drank a lot of beer, then his mom whacked him upside the head, and he then used the loss to fuel the most dominant Olympics ever.
Gable/Dan can and will do the same thing, but only if he's got the interest for it to fuel him. If he does, I don't think that Captain America and David Taylor or anyone else, including any Iranians or Russians, are going to keep him from any gold medals.
But Gable/Dan is a much different guy than Dan/Gable. He isn't as obsessed with wrestling as his namesake. In fact, he may be the least obsessed with wrestling of all of the 330 guys in the brackets this weekend.
My view is that he's best off committing to wrestling. He's better at this than he is or will be at anything else, he's healthy largely because he's not obsessed with the sport, he's the best in the world when he's engaged, he'll do as well or better financially as he could in anything else in life, and he won't get punched in the face (which I doubt he has the personality for) or be subject to a capitalist making capitalist decisions about his marketability (which didn't work out for him last time).
But I think the odds he'll go this route with full commitment are no better than 50/50. Sadly.