@Daojoan Ray Kroc and Tim Cook I don't think either cared much about what was being made, they cared about how to do it better.
Mary Barra and Ferdinand Piëch one is GM royalty the other is a Porsche. Piëch was a car guy and created the VW of today through acquisition. Barra isn't really a car person and created the GM of today by divesting GM of companies and partnerships. I wouldn't call with company unsuccessful.
Some people just like to solve problems