I can only see the benefit of a targeted assassination for a very specific subset of a subset of a subset of people, not large scale killing of people. Warfare maybe? For fun? Not as obvious as fraud for monetary gain, there is a scale issue to consider.
I worry more over bugs that kill people on the operating table or in the air as opposed to someone manipulating the equipment for some unknown benefit.
>> Then you better move to the woods.
I think you're exaggerating just a bit.