3. Your strength outweighs your weakness
Bruce Banner describes the monster inside him as being constantly “exposed, like a nerve … it’s a nightmare“, and the burden of what’s inside him is something he carries with him every single day. He knows that he’s a single shirt-ripping moment away from destroying everything around him.
In the movie, everyone want to know the secret behind how he controls himself and keeps his anger at bay, keeping a lid on the Hulk. It’s only right at the end of the movie that we find out what that secret is.
“I’m always angry”, he reveals. He’s had a hard relationship with his anger and it would be easy for him to see it as a weakness and a fatal character flaw, but Banner has come to a place where he accepts it as part of who he is rather than fighting it.
Focusing on his “weakness” would play on that exposed nerve, create more internal conflict and level most of Manhattan, but in accepting his weakness he’s able to master his true strength.