I can’t even bring myself to write anything coherent on this subject. The calculated gains are so petty and the symbolic cost so huge (let alone the real costs) it just infuriates me.
If you’re a Kiwi, write to the PM about it. I just did. He’s at firstname.lastname@example.org and you can write to him this very moment. Stephen Judd has a great exemplar.
(If you’re not a Kiwi, feel free to write as well – living up to the international branding of NZ as clean and green is important to our tourism industry.)
Edited to add: the estimable Keith Ng rips into the facts, rationally.