Jack Kirby was sort of who I thought about when I presented the Greek mythology angle but I guess he really has not been around for awhile. At its' best Batman also has many nods to mythology but you're right,depending on the writer Batman has had ridiculous moments too. There was a particular Frank Miller run that was teeth gnashingly bad. (I'm not referring to Dark Knight Returns. It was a whole other thing.)
Personally I like titillation though I do not think every single comic book should have it. If a particular run of graphic novels has a certain mood and a certain tone "throwing in the T & A" is not always the best of ideas.
Usually my bottom line comes down to simply having choices. The thought provoking stuff and the absurd escapism stuff should both be on hand for us to enjoy either extreme.