The Gods are not almighty, and they are not the only primal forces of immense power around. There are other beings such as the Fae Lords, the Elemental Princes and Archfiends that hold power, are worshiped and can grant divine powers. In terms of power there are large deviations between individual beings, but they are still a step below the Gods and similar, with even the very strongest of them being just barely unable to match the weakest of the Progenitor Gods.