Is the result of people not
realizing that everyone is connected.
And also a lack of self
understanding and happiness.
And finally because those who
strive for power and money at the detriment to others do not
understand the basic principle of karma.
The sad truth is these people
are in such blackness of ignorance that they don't even realize how
much they are suffering. They seek to hold power over others to
somehow fill the deep hole of emptiness inside their souls.
But the fact that they are
mentally and emotionally sick doesn't mean they should be allowed to
perpetrate evil on others. As in WW2 it is necessary to take action to
stop a plague from spreading. But we should always act powerfully but
not with anger. Criminals do evil because they are insane and we
should always remember this fact when we perform actions to stop them.