Once a very poor, young women, with life threatening disease was asked to have one wish and that would be fulfilled. She thought about money, but money was not good if she was to die young. Then she thought about health but thought that what would she do with health if she would not be able to enjoy it. In the end she asked that she would like to see her grand children in the cradle of gold.
Having said that, and answer to your question. Who am I to change what is going on in this world? The only person I think should change is me, myself as that is the only person I have control upon. If I am good for this world then this world will become good not only for me but also for other people.