I just read the article and realised that the top users are also from the world economic or political powers such as the US, China and Russia. This is also due to the level of awareness and technological advancement which the citizens have taken advantage of too. You won't expect people from poorer countries to have easy access to such information and technology.
There is no giving an open point to one another, not even a chance. These top notch countries are like these and never has an ending whether it is economic power or political. There just too serious about who is being the top.