Nonsense. They could even be the guy that carries the vaseline or the guy that waves the towel. Corbett could display which round it is wearing his custom thongs. Stop trying to disempower people!
I doubt that Burns would ever fight at heavyweight today, even theoretically. He is smaller than even the smallest men who have made the transition in recent years. It is possible to imagine Corbett having a career at heavyweight, though he would obviously have other options. Men of similar physique have made the transition, to hold top five rankings, and even lift the occasional strap.
That about sums it up. If Burns did manage to get himself over 200 pounds in recent years, using modern "nutritional" help, he certainly wouldn't be able to defeat the likes of Wladimir Klitschko or Tyson Fury. Corbett does not look good on the old films, but I've seen too many slick looking guys lose to someone who looked horrible in previous fights to write off Corbett that easily, and James J. could definitely step on a scale above 200 pounds and fit with the "help" available in modern times.
