Beauty of nature is good and all, but some sort of development is necessary. You need accommodation for the tourists, after all. If you don't like hotels and "resorts" (whatever the definition of that means), at least you'd need at least some sort of clean cabins and well-kept roads. Not many people want to rough it out in "nature" and stay in ugly huts.
Even if you want to preserve the dirt roads and not asphalt it, it needs to be not bumpy and full of holes. Like, that kind of maintenance stuff needs work. You can't just leave a dirt road be and not do anything to it just because "tEh nAtuRe". Nobody likes going through muddy roads riddled with puddles.