Put a lot of people out of a job too.
It might put drivers out of a job, but it will create many more jobs in the engineeing sector designing, building and fitting these things, plus the jobs needed to maintain them. Overall no less jobs, just jobs in different places.
The Mototok is exactly what I was thinking of, but if it were controllable by the pilot (or followed a pre-set route from runway to gate) then so much the better. No need to carry around all that drive weight, yet silent and emmission free.