My theory is that aliens are the Gods and kind of acted with everyone. Everyone would idolize who they thought was in command of the party that visited them. Think of the giza pyramids and the precision with which those 70 tonne blocks were cut (with copper tools? not by humans for sure) then lifted into place so perfectly you couldn't slide a credit card through them years before iron was even founded. All religions all have the same golden rule as well, treat others as you would be treated. Is this no the greatest rule for global prosperity? If we all helped eachother absolutely free of charge, the world would be a much more advanced place. And this is probably what alien species have done.