The principal gave a speech comparing the two groups of students that were present, one who gave up on their future while the others are still in school. He wanted to motivated them so they feel that they are not less superior in society and the first thing they would have to do is pass the exam.
Not all motives are created equal. Don gives Charlie a long list of suspects with the same motive. Charlie uses an asymmetric threat assessment to see which of their suspects were the most affected by their motive and most likely to act.
When employees are putting in just enough effort to prevent themselves from getting fired, it is a good indication they are in need of a little motivation. Companies need to understand what motivates their employees - examples include monetary rewards and social mobility - then adapt to implement the correct incentives.