Unfair things happen. You might be diagnosed with a disease, demoted for a mistake you didn't make, convicted of a crime you didn't commit. The ref might make a bad call, an agreement might be abrogated, a partner might let you down.
Our instinct is to fight these unfairnesses, to succumb if there's no choice, but to go down kicking and screaming. We want to make it clear that we won't accept injustice easily, we want to teach the system a lesson, we want them to know that we're not a pushover.
But will it change the situation? Will the diagnosis be changed, the outcome of the call be any different?