Mind control should be an efficient thing. Rather than pushing somebody's head in the direction you want it to face, you simply think it, and it happens. This avoids all the energy loss associated with lifting one of your own fingers, to name just one loss.
Two types of mind control:
Using psychic or electric powers to manipulate another's mind to do your bidding
Being in control of your own mind
The first seemingly requires less willpower, while the second requires vastly more. But if you practise often, it will become your own superpower, one not too many other people have.