Not just "incorporated", you would also have to have ported it to various computers that were sold (as MSFT did - and that Bill Gates' parents were lawyers with IBM contacts helped a lot).

NZ is a fantastic country, but is relatively remote from larger markets, and its own population isn't large enough for the economics of scale to apply only locally. So even if you had tried, you may have failed. As you rightly say, power of location. On the other hand, now, due to globalization, things are possible there, too - for example, the app market is not limited geographically.

BTW, you should consider uploading your old compiler's code on GitHub if you still have it; there is increased interest in "software archeology" now, given that so many emulators have been built.

I was more talking about owning the name in NZ (and maybe Oz)

The software source was on cards (developed on a simulator on a uni mainframe, much like Microsoft were developing their code), sadly the cards were left behind when I moved to the US a decade later