The origin of Marvel Asgard vary. But I do know that all the different governments in the Marvel Universe do not recognize Odin as man's creator, and they do not worship Gaea. They are regarded as the stuffs of myths and legends. Sure,they exist in the Marvel Universe, but Odin is not even widely known, let alone accepted as Earth's ruler.
A citizen of the United States can refuse to recognize the American government having any authority over him and refuse to pay his taxes. That still will not prevent him from being thrown in prison for tax evasion.
Why should it matter to Odin, Thor or Gaea if human governments recognize them or not? They were here first. Odin creating humans may not be widely accepted, but it does not make it untrue. And as far as the Thor marvel mythos is concerned it is true. Why should Gaea tolerate humans polluting the Earth because human laws allow it or mess with human legal systems to try and get them to stop? She is the Earth. In a sense, they are poisoning her.