Some time ago David Hackett Fischer wrote a book comparing the USA and New Zealand.
I thought of that book when I read this Post opinion piece.
As you might understand from the title, Fischer sees the societies as different. Although they're both "settler societies", the key to the US is "freedom", the key to New Zealand is "fairness". I remember his argument was in part based on the histories--we fought the British to establish autonomy, freedom; New Zealand was settled later when the UK had learned better to deal with their colonies. Also, in the years between the settling of America and the settling of New Zealand the nature of British society had changed from a hierarchical aristocratic society to one with the urban working class arising.
While I remember Fischer dealing with the Maori influence on the overall society, I can't say he saw the same factors as in the op-ed. But the overall effect is the same--concern about the impact of one's actions on others, particularly the fairness of the impacts.
So, in the pandemic we have lots of resisters to the masks and lockdowns here, because people say it impairs our freedoms. In NZ they could impose restrictions because infecting others would be unfair.