what is with this narrative that messi only won the world cup what????
He did though, which is fine. If Argentina bomb out in the group stage, and Messi had 25 goals and 25 assists for PSG, he wouldn't have won the Balon D'or. It's not a scientific award, there's a massive world cup and sentimental weighting to it, that it doesn't matter how he performed for PSG.
Robben, Makelele, Sneijder and Ozil (to a slightly lesser degree) all performed at a world class level after leaving Madrid.