Most of them. No organization can function well if people don't push back when they see it going off the rails.
Dissent is an important part of good collaborative decision-making. Demanding that everyone "sing the same song" or get out eliminates the ability to adapt, improve, and correct.
How did you come to this weird world-view? People argue, politely, in every meeting I attend at work, in my hobbies, and while gathering at social functions.