What you had to say about the rich and powerful being resistant to such a society in many cases is true, however if they keep using automation in their industries, as they have to in order to compete, millions of people will be replaced by machines. This includes not only the assembly line workers but also doctors, engineers, architects and the like. As they lose their purchasing power, the very industries that depend on them can no longer function. This will bring an end to the old outworn monetary system. It is not a question of them giving up their industries; it is that their greed will eventually render them obsolete.
Only when science and technology are used with human concern in a world in which all of the earth’s resources are held as the common heritage of all of the earth’s people can we truly say that there is intelligent life on earth.