Here's an interesting map from TE Architects, via Information Is Beautiful: they call it the Schengen Wall - and it's a theoretical "wall" that divides the world's Haves from its Have Nots. Look at those numbers: 73% of the cash, 14% of the people – it's the Pareto Principle at its best.
Now I have a Schengen-friendly passport... but you know where I live? There, at the far end of the grey part of the map.