Phi
It is not always to just "ground their power" to neutralize it. Oh were it so. That is far...far.. too simplistic. At a point when they are not using dumb force; things can get dicey and you need to be capable of much more. In a face off with other people with better understanding of power you will be played and manipulated rather than them let you have a stand off of power to power, Hell even a good soft wrestler (yes they exist) will pick that apart. At that time, the ability to make change far surpasses the one point connected model.

Dan