Here is another one which shows total GDP (ie not per capita) by country..
And here is one which shows the number of primary aged girls who are not receiving schooling..
Finally, the consequence might be .....

This map shows books borrowed and so is a measure of a) provision of libraries and b) literacy
All of these maps come from the Worldmapper website which has 366 similar maps showing the scale of socioeconomic disparity around the world. One word of warning - remember that the maps show totals rather than per capita figures. You must therefore always bear map 1 above in mind when drawing conclusions from the maps.
