The ability to synch and influence with anything with a brain would rock. It's only because the character was so lame that nothing was ever done with it. In the hands of someone competent you'd have telepathy, brainwashing, lie detection, mindripping, superhypnosis, puppeteering, political and financial influence, an army of zombie animals and another of fanatically loyal worshippers.
His power could have rocked if he wasn't such a wuss.