In early 2000's where they knew humanity would eventually find out [Sumerian excavation and translation of the myths], jews tried to control this information that was going to come out. They translated a lot of things in the grossest manner, and Stichin was a very famous author who did this. And he put a lot of garbage in his theories to make the Gods appear stupid, or others simply mistranslated.
The Gods could mine this elsewhere, and the universe is rife with gold. They could easily be mining asteroids and get infinite gold. They definitely did not need to come here to do that, as Gold is abundant on some asteroids x100 times any parts of gold that could be found on earth.