He made so much stuff because when he initially made Man it was already clear that this was a big mistake. He kept trying by creating lots of planets, constellations and universes but just couldn't get it right. So he was stuck with this lot on Earth.
But fear not, apparently you can rape, pillage and murder to your heart's contend while on this Earth, as long as you truly repent just before they give you an injection or stretch the noose, and you will still go to the Promised Land.