While Iron Man has never looked better on the silver screen, Marvel has pretty much sabotaged him in the comics for well over a decade. I do not blame any modern-era reader in the slightest for thinking of him as a complete and utter tool because that is the way the writers have consistently portrayed him for far too long.
Tony Stark has been reduced to:
1 - Hero that always takes the hated position in conflicts, and usually for no good reason.
2 - Punching bag that less popular heroes use to prop themselves up
3 - Genius that is made to look stupid to prop up other genius characters
I really hope RDJ never reads a current issue of Iron Man, he will likely never play the role again, and that would be a shame. His portrayal is as close to "classic" Tony Stark as one can find outside of deep digging in a back-issue bin at your local LCS.