I guess you do need to read Piketty:Ill get to the rest in a minute but first tell me how is redistribution occuring in reverse?
http://en.m.wikipedia.org/wiki/Capital_in_the_Twenty-First_Century
The concentration of wealth in the hands of a few is a redistribution of wealth from the bottom to the top. The Stagnation and decreasing of wagen, the loss of financial security and pension rights, tax cuts for the rich etc are all forms of dispossession and redistribution. Somebody calculated that the amount of bonuses paid out to wallstreet bankers in the wake of the crisis in 2007/08 more or less equaled the amount of money lost in the crisis. So all those people who lost their homes and savings were disposessed. If you look at who lost money during that time it's the lower and middle classes, while the fortunes of the rich actually increased. The money that was lost didn't just disappear, it was redistributed. The reason why this happens is that we are not actually producing enough growth through production to accumulate capital, so it has to be accumulate through other means. And that means is redistribution and dispossession.
In a nutshell:
Accumulation by Dispossession, with David Harvey:
And if you got more time on your hands:
David Harvey : A Brief History of Neoliberalism: http://www.youtube.com/playlist?list=PLA27CFAD836E1638A