Why is change almost always a good thing?

You can change a dollar bill, you can change the color of your hair, you can change partners…..but is change always a good thing? In my department, our Chief of Police took everyone’s personnel folder and read their education background. He discovered officers with Masters Degrees working in the tow in lot, when in reality, they should have been working in an administrative position. He changed everyone’s job title and days off. This created havoc, especially with the officers with young children and babysitters. In this situation, the officers began to have animosity toward the chief and the morale suffered. He is gone now, but the hate still lingers.
Question: so, is change always a good thing?