Yes...the USA is the center of the world...or at least we think we are!
I'm not sure what people are so concerned about as far as their sales and charting is concerned. It's not as if the Stones will stop recording and touring if they don't chart well.I don't think that 80% of the buying population considers the Stones as "popular" artists. They aren;t seen as the force that they were in the 60s and early 70s.
I sometimes think people want them to chart well simply to justify their own love of the Stones.
I don't care how they chart as long as they put out good music.