Analyze Helmholtz in every aspects (actions, behavior, etc.) and give examples from Brave New World.
In my opinion, Helmholtz Watson is the main hero among the people from the "civilized" society. He is the only person who we see that is brave enough to act on his convictions, even if that means that he will be punished.
Helmholtz is very smart. He is an excellent "emotional engineer." But he wants more -- he wants to write in ways that have meaning. He wants to write things like Shakespeare wrote. The society will not allow this.
He starts writing stuff that questions societies values. Then he helps John in the brawl. By doing this, he acts on his convictions. Then he, unlike Bernard, is willing to accept exile calmly.
To me, all of this shows that he is a man of integrity who is willing to stand up for his beliefs.