Power
You have the power to change people's lives with the suggestions you make.
Big corporations and entire sales forces teams have been saved by a good life coach walking in to tell them how they're screwing up and how to run the show from then on.
You could consult to leaders of countries and work to bringing about world peace or bring humanitarian aid at the wave of your hand.
You could tell the leader of the free world how to live his life.
If you're able to make change in others people's lives, you will also master the power of your own.