Just back from hols so I'm just catching up..
A lot of the examples being raised centre around the South Island nations and how they end up playing for Tier 1 countries in their area or even some that end up representing Tier 1 countries in the NH hemisphere.
Qualifying under residency rules simply as a result of fulfilling a contract in a NH league isn't right but as someone rightly pointed out, some of these players are subsidising a whole village back in their native country.
But they can do that as a pro club player though. Dan Leo has made a documentary about 1 player (Fiji perhaps) that did this and the pressure becomes unbearable at points for the player.
I object to NH unions "targetting" players who haven't quite made the cut in their own country's national setup and have researched the player's ancestory to see if they qualify (I think we know one player), or, even worse, have simply promised a place in their new union set up as long as they fullfill residency rules (which I think happend with CJ Stander and Ireland)