The saying that all below the high-ranking gods are mere ants is just a rumor.
At least, beneath William, even high-ranking gods are mere ants.
Forseti, too, could be considered a prodigy blessed with extraordinary talents, both in terms of lineage and personal strength, ranking him among the powerful in the Divine Realm. However, his luck was terribly bad. Not long after leaving the Heart of Asgard, he encountered a monstrous freak.
Prometheus, once the bringer of fire to humanity, was enticed to steal the fire by William, who at that time proclaimed himself as the "God of Cooking."
After all, how could he prepare delicacies for Prometheus without fire!
Seeing Forseti's feathers burnt off by Prometheus, William's first thought was that such a cooking method was a waste of good material.
But hearing that desperate cry for help finally awakened the last bit of William's conscience and sense of responsibility.