I hadn’t realized the value-based rather than resource-based aspects of the Wilderness Act mandate, until I came across the page below in a U.S. Forest Service Wilderness planning and management document.
In this sense, the Wilderness Act is a legislated assertion of a human role in the Creation that differs from that interpreted by many Christian fundamentalists and probably others, i.e. congressional enactment of a religious position, rather than just a specification regarding land management actions such as roadbuilding.