Because the top 10% would rather NOT pay their fair share. Instead they prefer to hire lobbyists to influence the peoples' representatives, prefer to own the media and pay commercial artists and others to attempt to shape and at minimum influence popular opinion. Why these folks cannot pay and act directly perhaps relates to our natural repugnance in the United States to the broken feudalism of Middle Ages Europe.

And yes, i would vote Socialist-Democrat in a heart beat provided it was the real deal and not a Nationalist Socialist Party a la the infamous one in post WW I Germany that brought a certain madman to power. (Hint: names starting with the letter H)