If we look back at history, we see a very clear pattern of machine automation slowly replacing human labor. From the disappearance of the Elevator Man to the near-full automation of an automobile production plant, the fact is, as technology grows, the need for humans in the workforce will continually be diminished.
...for human employment is in direct competition with technological development. Therefore, given the fundamental priority of profit by industry, people through time will be continually laid off and replaced by machine.