Microsoft chairman Bill Gate is the richest person in the word because of his dedication toward his paradigm changes in the software world.
Despite being a rich person, he sets a new goal; founded Gates Foundation to alleviate AIDS, to enhance healthcare and to reduce poverty from the world. His interest and passion for future, free from AIDS, other disease and poverty from the world, especially from the developing countries, inspires us to do something in the present moment for the sake of mankind.
So he is trying to shape a newer world by his current activity in Gates foundation to reach to a state where people would not afraid to die from hunger, AIDS and other diseases.