I interviewed my Uncle who is a engineer.
Job: General manager for an engineering Company
Question: How can someone change the world? The world can be changed with a good idea. It takes a good idea and a group of people who believe in the idea. When people work together they can change the world for good.
I also interviewed my Aunt who is a Adoption Worker with the Children's Aid Society.
I think you need failure to change the world because you learn from mistakes.