I've often pondered on the culpability of those who put, often very young, soldiers on the streets of Northern Ireland and expected them to behave like police officers in a situation that felt to them like a war (which was what they had been trained to fight).
When a nervous squaddie pulls the trigger it's them that will bear the responsibility not the general or the politician that put them there.
But if the accountable manager of an airline put an inappropriately trained pilot in a role they were not suitable for and that led to a fatality they will (rightly) face consequences.
(I concede that this particular case seems to be a pretty clear example of gross negligence on the part of the soldier but many others are not so clear cut).