The wealth imbalance is mostly down to the economics failure in fiscal policy.   If we had stuck to hard currency it would not allow governments to overspend so easily nor issue new currency helping to make their populations poorer and require constant pay rises just to keep neutrally with their prior wealth.
  The reason all of that goes on is misunderstanding and misdirection, inflation can be labelled on retailers for example who allow such prices and the argument being as if they created the price rise, etc.  You could say this is a fault of democracy perhaps but it seems barely anyone will point at weak currency as the ongoing cause of imbalance in economies.