Why do we crave for power?

I dont like the fact that society are able to affect us in such ways that it can change who you are. The fact that society alone can make us do things we have never thought we can do just scares me. By society i mean the environment that we live in, the people, the hierarchal order of human nature, social order and the need for fame. Why is it that we crave for power? I pity those who do not see them self for who they are and instead tries to be someone they are not just to fit into society. I admire those who can find their true nature. I would like to meet someone like that in my life, someone that i think worth to be with for quite some time. Don't you think so?