Meeeh. Argentinian players are very proud people when it comes to their nationality. Messi almost always exclusively hangs around with Mascherano. Before that it was Milito. Agüero is sucking Messi's balls non-stop. Messi himself refused to play for Spain although it would have guaranteed him 3 World Cups to his name. He caused a riot to go and play for Argentina in the Olympics etc. There is a different chemistry between Messi and Higuain and Ronaldo and Higuain. When Higuain scores for Argentina through a Messi pass he doesn't even celebrate. He points to Messi. Di Maria, too. Agüero, too. Higuain in awe when talking about Messi:
“Messi is incredible, he really is. I know it sounds crazy, but how do I not want to have my photograph taken with someone like him? It doesn’t happen with other players but it’s strange to share a changing room with a player like that. It’s difficult to explain.”
He becomes a different player playing alongside Messi. It's so obvious.