Which is why Bruce Wayne would have made an aweful Captain Marvel. His heart is so bitter and twisted that - well, anybody here read "MiracleMan"? It was a Brit comic book about a kid with powers similar to Superman but in a Captain Marvel way (kid says "Miracelman", kid becomes super-hero). Sadly the kid loses it when he is raped (yes, raped - some comics pull no punches whatsoever), turns to Miracleman, and, well, let's say that there probably wasn't anything found of the assailants - or of London for that matter. Such powers as SHAZAM can only be abused by Bruce Wayne if he ever held it as a kid. You saw what he did in "Speeding Bullets", what makes you think he'd be any better as Captain Marvel?