While it could generate animosity, it could also make you aware of the environment faster than if you have to discover it piecemeal. Isn't it better to know whether advancement is based on connections or on achievements?

It tells me whether to look for advancement within a company or elsewhere. It tells me which managers I would rather have or avoid. It tells me which positions are more desirable.

It also encourages a company to nurture its employees if it wants to keep them.