Dave Champion said this quote

Ordinary men wonder why those of only average intelligence so often rise to the highest levels of power, while highly intelligent people generally do not. They fail to understand that reaching the highest levels of power has nothing to do with admired attributes such as intelligence and competence. The predominant characteristic of those who rise to the highest levels of power is a total disregard for the consequences – including death – that will befall thousands, or hundreds of thousands, or millions of human beings if it is deemed necessary to attain his (or her) goals. Generally speaking, it is this total disregard for humanity that has distinguished ‘rulers’ throughout history.