As Tech Won't Save Us (@techwontsaveus) explained in their Data Vampires series, scAmazon doesn't want to build datacentres in Aotearoa to benefit us. It's a way of mining our country for cheap renewable energy, and cheap labour (remember the infamous "Mexicans with cellphones"?). Which they can then extract from the country in the form of dollars.
Their extractive logic was laid bare when our energy prices went up, and they massively scaled back their plans.