Having Knowledge and power can help individuals to improve their own life and it also affects the people under and around them.
However, sometimes combination of knowledge and power becomes dangerous. Generally, when knowledge and power appears, ego and hypocrisy also emerges.
Power makes people think that they are somewhat above the law and the general rules do not apply to them. They believe that all rules apply to others, but not to them, even if they might have made those rules themselves.
And, by using their knowledge, they can justify their own actions, while condemn the others for doing the same thing. They become unfair and hypocrites, and use their power to make others work for their own fancy life style.
Since the hypocrites do not think that they are lying or doing anything wrong, there is no chance of improvement in their behavior and that is dangerous; not only for themselves, but for others as well.
Only when the ego and hypocrisy is abandoned, benevolence and righteousness will emerge.