This would stop the currently exponential pace of growth from outpacing what society, and regulation, can adapt to. Thus avoiding the inevitable crash that will happen when we lose control of the exponentially accelerating train of technology, and it flies off the rails.
Most governors don’t have the balls like this one.
These governors gave rise to the phrase “balls out.”
When the governor is at its max the balls extend outward, slowing the speed of things.
Additionally, when the train starts going really fast, the balls raise up. In the conductors booth, the governor is usually next the wall, so these higher speeds also lead to the phrase “balls to the wall”.