God is always invented to explain those things that you do not understand. But you need him for the other mysteries. God is always associated with those things that you do not understand. With or without it, you'd have good people doing good things and evil people doing evil things. But for good people to do evil things, it takes religion.
Atheists simply reject that last one as well.
And the invisible man has a special list of 10 things he does not want you to do. This page best viewed with Lynx.