I don't know if you've come across these maps yet, but I think they might help us see the world better. They are from The Atlas Of The Real World (although I found these on the Telegraph website), in which all sorts of different things are portrayed, but here's three that took my fancy.
i. Wealth [ie. GDP, adjusted for local purchasing power] in 1AD
ii. Wealth in 1900AD
iii. Wealth in 2015