To operate based on conviction and belief requires an acceptance that your actions could get you fired. This is different from pig-headed bravado, and it is different from putting the company at risk.
Simon SinekDisney became hated. It became one of the evil corporations. It used to be loved. They couldn't hold onto talent; they couldn't attract talent. Some of their products did badly. The Californialand project was a $5 billion waste of money. They couldn't make it work. The magic had gone, no pun intended.
Simon Sinek