People have mixed feelings of power. Some may fear having power, or another having it. Fear they will have too much of it, or become corrupted by it. Others may despise power, and those with it, and wish to fight against it, most likely failing. But lastly, there is our third group, those who become seduced by power, and desire it, as much as they can. These people are easily corrupted by power, yet they embrace it, only lusting after even more. To them, the ultimate goal to succession is the power you have.
Those with power, may be either respected or resented by those around them. If there are multiple with power in one place, perhaps those without flock to one powered individual, rather than another, who can do all that the other can. That one feels less power, being brought down to common in their state of mind. This is yet another way that a craving for more power is birthed.
Power is given to those who use it efficiently, only for the vast majority to become darkened by it, and have it alter them entirely.
I need more Power...