Even now 3D printers can create a wide range of products the major challenge lies in making those technologies realistically affordable for consumers. When free is an option for all consumer goods it will have a greater disruptive impact than anything since, at least, the industrial revolution.
Whether it's the Arab Spring, the Tea Party movement or Occupy Wall Street, what is it about leaderless organizations that makes it all seem so strange to us? Because we expect others to lead us. Because there is no defined 'leader,' they are chastised for not having in place a more traditional (and hierarchical) structure.