I figured everybody spouts off their opinions as if they are the
  President of Earth and everybody should listen to them.

  So, I thought, "Wait, why don't I just SAY IT ALREADY?"

  So, I set myself up as benevolent/evil dictator/good-king of
  Earth.

  Everything stays the same. Nothing has to change.

  By the way - what do you want to be a head of? As few or many
  departments as you like. You're in charge. You can form any
  committees that you like or not and you don't have to report to
  me, but you can if you like.