Besides being obviously beneficial to Apple, this is also an example of spreading parts of North American culture and experiences outside of politics to the world. There is a craving for our cultural and artistic content.
Rocketman
There is nothing stopping a music producer in Zimbabwe from adding their music to the iTunes music store. They may even decide to sell that music in the US. They may have been selling that music in the US for the last several years, but you didn't notice it because you're not looking for it. For example, https://itunes.apple.com/us/artist/oliver-mtukudzi/id56551652.
People in Zimbabwe, United States, or Moldova may be looking for "North American" music. They may also be looking for Zimbabwean, Moldovan, or Kyrgistani music. That's the beauty of the world in which we live.