4. Leonardo Del Vecchio
Leonardo Del Vecchio came from the most humble of beginnings. He was sent to a orphanage when his mother was unable to provide for all five of her children. He went to work in a factory that made auto molds and molds for sunglasses. He worked hard and bought his own mold factory at the age of 23. He expanded his factory and became the world’s largest maker of sunglasses and prescription eyeglasses. His net worth is around $11 billion.