Is the World Flattening?

I wonder whether the gaps among social classes are widening or narrowing in today's world? If you into a certain country, the gaps there must look widening. If you look around the whole world, The rich in every country are getting richer, as rich as those in advanced countries: the poor in every country are becoming poorer, as poor as those in underdeveloped countries. The rich, however, are getting richer in absolute manner, and the poor are becoming poorer in absolute sense. Yet, the hierarchy in every and each country has not only become a part of the world hierarchy, but also they are forming a single global hierarchy. The rich are rich in the universal hierarchy, and the poor are poor, no matter where they live. Being a white or a Japanese does not guarantee that they are well-off. The world is, at last, overcoming racism.