Thin line between silent acquiescence and protest

Imagine the scenario where a person is being unfairly treated in the office. What are the options open to him. A. He can silently suffer or protest. In both cases there are pros and cons to be considered. If he keeps silent the same treatment may be meted out to him time and again. If he protests then his superiors will always have some excuse to justify their actions. So a thin tightrope walk is necessary to avoid the minefield of office politics. In other cases too there is a tradeoff in every decision we take and the credit lies in choosing one path and sincerely sticking to it no matter what. I believe that sincere actions only help in the long run and there is a gut feeling which one has to go by and not depend on sycophancy or convenience of the moment to choose an action.