On one hand it is vindicating, to have the world know your claims were real. Nevertheless, when those claims reveal a gross abuse of government, or the neglect and suffering of others, being right means at the very least, most of the world would have preferred you were wrong.
Truth-telling can be an awkward business.
But nearly everyday someone is risking their job and reputation because they feel it is the right thing to do. Sometimes, they get their comeuppance and better yet, something good comes out of it.