It's obviously American centric because American media has been dominate at a global level for decades. That's the reason so many people know who eg Tiger Woods and Jordan are: American media made them famous to a degree far exceeding their accomplishments. The same holds true in music, movies, tv shows, and so on.

Jordan was widely regarded as one of the most famous people on earth for 15 or 20 years. His name is even more famous than his picture. I don't think there's much debate to be had about his global fame frankly. As basketball globalized rapidly in the late 80's / early 90's, it was his image intertwined with it, and it perfectly coincided with the rise of global media.