How does it bump his draft?
No team is going to want the liability of drafting him, then cutting him.....Why even bother to draft him in the first place, with the circus it would create?
Some owner will want to be “the one”, feted by the beautiful people.
Look at Johnny Football. The guy was hyped to the moon with people tagging him as a number 1 or top 5 draft pick. The kid fell to number 22 after a number of teams passed on him. Michael Sam may likely not get drafted, but the gay thing sure did leverage any possible opportunity from an otherwise unremarkable athlete.