Open discussion and debate of ideas at times is not only good, but necessary.
To illustrate: Let’s say there is a group of engineers. They initially begin working on a rocket, and then one single individual takes over & thinks he alone knows the best way to go about it, refusing to hear anyone else no matter what.
Then, let’s say later, the rocket fell to Earth w/a crew of people, killing them all, because some of his engineering ideas were flawed. If he had been (and stayed) OPEN to the ideas of others, TOGETHER they could have prevented catastrophe.