Smart young things joining the workforce soon discover that, although they have been selected for their intelligence, they are not expected to use it. They will be assigned routine tasks that they will consider stupid. If they happen to make the mistake of actually using their intelligence, they will be met with pained groans from colleagues and polite warnings from their bosses. After a few years of experience, they will find that the people who get ahead are the stellar practitioners of corporate mindlessness.
Hmm, sounds a lot like something that also happens in some schools.