Diversions such as this one are typically absorbed by the airline regardless of the out come. Flight crews are only able to offer so much medical assistance based upon fairly basic medical training. If there is a medical doctor, EMT or nurse on board to offfer assistance it can be a great help in diagnosing the probalem and determining the best course of action.
Most of the major airlines operating on the North Atlantic or NoPac have contracts with medical centers set up just to handle these types of situations. The medical facility can, based up certain known parameters determine the best course of action and thus mitigate both the medical hazard for the passenger while at the same time reducing liability to the airline. They can also coordinate medical services in such awy that when the aircraft lands there are personnel standing by both at the airport and the hospital to receieve and treat their condition.
The ones that really upset you are the passengers who say that their pills are in their luggage in the cargo compartment and they are having heart problems without them. Tempting to say, that's your problem not mine, but I guess that would lead to bigger leagal issues down the road.
