Is it not a question of whether the given wilderness is a part of society?
Wilderness areas are a "part of society." But wilderness is an idea as much as it is a place, and the only place you can engage in the idea of "wilderness" is in geographical wilderness.
Your statement suggests that the rules of domestic life should apply in wilderness, but it's our domestic laws that say that there should be some territory where the spirit of domestic life doesn't prevail.