The Iterations of Tony Stark and Ultimate Comics
The MCU has taken a lot of it's inspiration specifically from the Ultimate line of comics. Thor's Stormbreaker, Spider-Man being in high school again, and Tony Stark's personality. Tony Stark has always been snarky, witty, and a pretty swollen ego, but a lot of the mainline comics' Tony Stark's rough edges have been sanded down. Stark was one of the founding members of the Illuminati, working for Kang the Conqueror, shooting Hulk into space, lots of his actions in both Civil War storylines, and not to mention his stint as Superior Iron Man, exploiting people and lots of other dubious actions.
My question is, have we lost something? Are the rough edges what make Iron Man so compelling in the comics? Has the MCU's more palatable Iron Man worse or just different? What about other comic characters who've lost nuance like Wolverine in every movie besides Logan?
Further, how do we go about adapting these characters from these thousands of issues to hours of film? Is it even possible? Is the loss of some nuance a necessary evil?