The Question and Answer section for The Fountainhead is a great resource to ask questions, find answers, and discuss the novel.
One of the main lessons in this chapter is the concept of beauty, and the fact that most people's concept of beauty is what they been conditioned to believe is beautiful.
In my copy of The Fountainhead, Dominique talks about destroying the statue on Page 104, Chapter 12.
"I threw it down the air shaft. There's a concrete floor below."
"Are you totally crazy? Why?"
"So that no one else would ever see it."
Toohey says that Henry Cameron deserved oblivion.... to be forgotten.