This single statement proves you have never read a Batman comic. Ever.
Oh, I have. More than you.
A short, balding comedic actor
Tom Hanks started off doing comedies. And filming techniques make up for height issues. It's part of film.
cast because of Burton's hang-ups about a "square jawed hero" (his words)
Good idea, makes up for a conceptual flaw.
is not how Bruce Wayne or Batman was developed.
And RDJ wasn't as tall as what Tony Stark was envisioned as, what's your point?
Nope.
Yep, anyone who reads the comics would know it's just as often made into a Gothic Hellhole.