Thats an interesting analogy you make their Kye....the thing that strikes me as ironic about the 3 names you mentioned,all 3 Dempsey,Tyson and Marciano were predominantly sluggers relying on brute force,apart from Marciano the other 2 both came unstuck against technically better fighters at the top level.In other words their brute force,strength and pure violence wasnt enough.
This is what im saying about mma,Brock Lesnar has proved that brute force,strength and agility CAN overcome superior technical ability at the highest level,which has been proven does not happen in boxing,particularly