In this video Dan talks about what motivates people in their work. In most types of work, its not how much money they make, its autonomy and mastery. They want to know that they have the ability to make choices in the way work is done. They want to be trusted that they will do the right thing. They want to learn new things and be given the time and training to be excellent at their job. They also care about their purpose. If you are chasing a career objective largely based on the salary, you may find you are not as satisfied as you think you will be. Dan has the science backing up this assumption.
This doesn’t mean that salary doesn’t matter; it just means it is not the driver towards work satisfaction that many people expect it to be.