It's not so much dedication to the marciano cause but a simple case of exceptional champion versus good contender.
I think it is David Tuas supporters, who are prone to making massive leaps of faith to be honest. This is a guy who failed with almost mechanical certainty, whenever he fought somebody ranked in the top ten, yet people are seriously picking him over top ten all time heavyweights! He simply wasnt the head to head monster that some people assume him to be.