The key message is to transition from doing work to designing outcomes in order to move from running the business to owning it. This shift allows the business to operate smoothly like clockwork, enabling the creation of more job opportunities and provision for more people. By implementing this approach, individuals can have more free time and generate more money, which can be reinvested in other ventures. The concept is based on the idea of not working in the business, but rather working on the business, as emphasized by the book's principle.