Lords and serfs, that's all that's left

http://www.huffingtonpost.com/entry/global-wealth-inequality_56991defe4b0ce4964242e09?

"The wealth of the richest 62 has increased an astonishing 44 percent since 2010, to $1.76 trillion. Meanwhile, the wealth of the bottom half of the world dropped by 41 percent.
'This is terrible,' Gawain Kripke, Oxfam's Policy Director, told The Huffington Post. 'No one credible will say this is good for the world or good for the economy.'
While the wealthy might argue that their rising wealth is just a fabulous sign of economic prosperity (the "you're just jealous" rationale), the disproportionate growth at the top is keeping those on the bottom from climbing out of poverty, Oxfam notes in its report."

There will be no middle class soon. This is going back to the Middle Ages, where the lords in their castles held all the wealth, and the serfs outside the wall toiled in the fields just to survive.  Progress?