Yeah and even that doesn't tell the full story, look at this small group "born outwith NZ"
Muliana moved to NZ at the age of 3 and Rokocoko at 5, Rodney So'oialo I can't find exact details but a WalesOnline article says at a young age and Jerome Kaino at the age of 4.
That's hardly "plundering the Pacific".
Of those players, Mils Muliaina (Salelesi, Samoa, 100 tests), Joe Rokocoko (Nadi, Fiji, 68), Rodney So'oialo (Moto'otua, Samoa, 62), Olo Brown (Apia, Samoa, 56) and Jerome Kaino (Tutuila, American Samoa, 50 not out) have played 50 tests.