At one point, Henry Cameron tried to fire Howard Roark and get him to quit architecture because he knew what kind of a struggle Howard would have later. However, towards the end of his life he told Howard:
Do you remember the day when I tried to fire you? Forget what I said to you then. It was not the whole story... Don't be afraid... it was worth it.
Why did he say that? What did he mean by "worth it"?