Because the rich and powerful are special, that's why:
Christine Lagarde, IMF boss who caused international outrage when she suggested that Greeks should pay their taxes, pays no tax. What she suggested is that somehow some poor fool who perhaps paid a few Euro less than he should have was responsible for the current mess in Europe. Not the greedy fucking rich. Not the banks. No, that guy, the waiter at the local taverna, or the guy who takes tickets on the ferry, him. Well, it was easy to rile up the others by suggesting that the Greeks were lazy tax evaders, but when they come after you? And slowly the other Europeans are coming to the realization that that which the Germans could not achieve with bombs and tanks, they are attempting to achieve with the Euro. Won't win this time, either. No one wants to be Germany's bitch.