I mean, just with Guardians being in the picture, it turns out that Earth actually exists in a kind of Wars/Trek type universe with a space-faring culture and we're just this Prime Directived backwater allowed to exist in a state of relative barbarism. But how long can such a thing last? Right from the get-go you knew the potential ramifications of this situation were not likely to be explored, as a status quo Earth is typically relied upon by superhero-genre storytelling.