Colliver,

If the universe operated like a CRT as you suggest, then the electrical forces would overwhelm the gravitational forces everywhere and planets and stars would never have spherical shapes at all. The mass of your body is too low for its gravitational forces to form it into a sphere. If your mass became great enough or your density skyrocketed you would form into a sphere. This is why astronauts planning to land on asteroids are going to need tether apparati in order to stand on them. Their gravitational fields are too low for them to fall and their spins will throw them right off like a catapult hurls rock great distances.