"Exactly," the brother with the pipe said. "It was the antithesis of the scientific approach. Ours is a reasonable point of view. We are champions of the scientific approach to society, and such a speech as we've identified ourselves with tonight destroys everything that has been said before. The audience isn't thinking, it's yelling its head off."
"Sure, it's acting like a mob," the big black brother said.
Brother Jack laughed. "And this mob," he said, "is it a mob against us or is it a mob for us – how do our muscle-bound scientists answer that?" (16.114 – 16.116)
The Brotherhood prides itself on appealing to the cold, scientific, and rational, but that's not an effective political approach for the narrator.