What do humans and dwarves do to forests? Do we not pervert and destroy them to fulfill our desires? Do we not pollute them? How is the Hag different? What actions does she take specifically that are different than this?
Also Hags usually live in swamps, which are important ecosystems.
By that logic, humans and dwarves are also equally part of nature. Humans and dwarves can be evil, and so it's reasonable to judge her by the same standard you'd use to judge a human or a dwarf. And either of them acting like the hag would probably be considered a serial killer. Firmly chaotic evil.
