Well, we can define our terms as we like, but I think I'm on safe ground in my understanding of "wild," which is consistent with numerous dictionary senses, such as "not tamed or domesticated," "uncultivated, uninhabited, or waste,"
"uncivilized or barbarous," "of unrestrained violence, fury, intensity, etc.," "unrestrained, untrammeled, or unbridled," "disregardful of moral restraints as to pleasurable indulgence,"
"unrestrained by reason or prudence," "amazing or incredible."
All those senses fit my way of distinguishing between the natural and the artificial.
I think historians will tell us that we often don't understand the ancient world because we see it through our filters. We project our preconceptions and prejudices onto foreign cultures. Our psychological and social natures change as we adapt to our artificial environments, and the modern world differs a lot from the ancient one.