After rumors of Zeus killed other people did as hero Alcmiteus decided to save her people from destruction. He spoke to Zeus personally asked him to spare the people. His efforts played right into the Goa'uld hands. He wanted to leave people behind, even after the last of the mines played out date is not fixed he ever needed a breeding ground for slaves. He did not have access to Earth longer and a cradle his civilization would be in his interest.
He agreed to Alcmiteus' condition and told the hero that if his people did not revolt would be Chosen of Zeus and live. He returned home and admonished his people to lay down their weapons. They are compiled and in the region just rebelling against System Lord Zeus final. (RPG: "First Steps: The Stargate Unexplored Worlds Roleplaying Sourcebook")