One Person Speaks Up
You've seen it.
A meeting is leaning heavily in favor of a particular course of action and then one person presents a strong counter-argument. Once that opinion is voiced, some other individuals mention their own reservations and before long the direction that once seemed certain has been altered.
One person plus one well-worded argument makes the difference. It gives those who were going to remain silent a gift: the courage to be candid.
Every board, group, and committee needs at least one person who is willing to speak up. There is no value in being unanimously wrong.