About “looking the part” (plenty of more extreme examples around, including guys who actually do look the part [but those usually post rep vids rather than max single vids, big surprise…] those two are actually some of the “buffer” guys benching 405 around youtube… Hmmmm.):
All a matter of how they got to their 405 max (training wise + diet to some degree) and their genetics and whatnot… Max singles don’t say much for certain about a guy’s physique unless they’re very, very high.