That's an interesting narrative you have there. The settlements were/are about the Treaty and nothing else. The cultural stuff is important, and it's possible for a culture to appreciate the importance of the environment around them, and also over succeeding generations, make a total mess of it.
It doesn't sound like you've read 'The Penguin History of New Zealand'. It should be required reading in schools. You should do yourself a favour and find a copy, if only the read the first two/three chapters.