In that past, the life cycle of a job was often at least long enough that a person's career might coincide with its birth and death. In the near future (if not now), people will be in a constant state of education for new jobs and specialties as old ones die and new ones are created.
In time somebody will get a hold of the key and just send them out on killing missions. At that point, even atheists will begin to hope there’s a God who cares about his Creation.
...or we will be cutting the lawns of our robot overlords ;)