Lets play the Devils Advocate -
The "rescue" helicopter that normally does this job has failed to find the casualty and has become unavailable for whatever reason.
It has been established to the best knowledge available and interpretation that the situation is life threatening.
There are two pilots available - one inexperienced yet fully "qualified" and one highly experienced and with a restricted medical yet a huge amount of local knowledge gained over the years in this particular area. To the point that if the position was described to him over the phone he could fly there without a map or GPS in marginal weather yet above helicopter VFR VMC.
There is only so much time available before nightfall.
The area where the victim is happens to be below ~5500' so in that area it is under the beech forest canopy.
If you had a winch capable aircraft it would be of no use anyway.
The landing area is at the limits of the aircraft performance with respect to altitude and that steep it requires a "hover exit" so 3 pax is the limit. No place for superfluous "observers" and "navigators" or a pilot not experienced in these types of operation.
Time allows for 6 ground SAR folks to be positioned and thats all before darkness.
They know that he will possibly need to be carried out and 4 folks is not adequate as they have done this before.
The "doctor" is aware of the pilots restricted medical as are the other occupants of the aircraft.
As the pilot in question you are fully aware that rules will be broken to the extent necessary.
There are no other "resources" available. This is not the UK. The South Island of New Zealand is ~ 20,000 sq km larger than England
and has approximately 1 million people in it. It is mountainous and with very few roads it can be "remote" away from the urban areas.
You decide not to go as you would be "breaking the law".
The casualty succumbs overnight.
Humanity differs from mere justice in that there is a level of altruism towards individuals included in humanity more so than the fairness found in justice.
I hope you sleep well at nights with your 20/20 hindsight goggles on.