Kobe Bryant bitches at his teammates all the time but he managed to get an average Lakers side to win the championship, and he's taken them almost all the way so many times with a very similar attitude to Ibra's....I don't think Ibra does it because he's selfish he does it because he wants to win and pushes the team to play on his level. Kobe does the same thing because he's miles ahead of the other players (just like Ibra in Inter's case) and he tries to get the players to perform to his level because that's what's needed. Messi, Iniesta, and such are surrounded by players who are either world class or extraordinary so you don't expect such actions....
I don't know if you've played football on a competitive level, but just see your reaction when you're surrounded by players who are either as good as yourself or better, and when you're the best player on the team. You'll see that when you're the best and by miles and it's competitive you want them all to step up and not make mistakes. Ibra does get frustrated at his mistakes and I've seen him punch his hand and/or scream, but he's also been silent which doesn't mean that he doesn't destroy himself inside and ask for more. But when others make simple mistakes (like Quaresma doing a trivela or trying to beat a player when the best option was to pass to Ibra) he gets frustrated and it's very normal when you're in such a level of football. It's not like Ibra gets frustrated at Cambiasso or Deki or Zanetti, he usually takes it out on players who decide to make idiotic mistakes such as Quaresma, who still makes such mistakes in pre-season, and that's why I don't see it as a problem.
Lebron James also shouts at his teammates when they do something foolish but it doesn't mean that he's an asshole or anything, I'm sure that the whole team loves his attitude in training, during the games, and off the court. It's the same with Ibra, my friends who met him in UCLA have said he's a great guy, and is a joker. While on the pitch he's been nothing but a professional, so I think that blaming Quaresma's short-coming on Ibra's frustration is not logical since Ibra's frustration is nothing but a result of Quaresma's many brain farts. He didn't succeed in Chelsea either, and that doesn't mean that someone was screaming at him there. If he can't take a teammate screaming at him whenever he makes a stupid decision, then he's mentally incapable of playing in the big league.