Helius: I've read you are a great disappointment.
Agenor: I am great. That's right.
Agenor: Oi, Helius! Come meet your uncle Navigator.
Agenor: Don't give me the big speech.
Perseus: Yeah, I wasn't planning to.
Hades: All my power is spent. Who knows, I may be stronger without it.
Zeus: You will learn someday that being half human, makes you stronger than a god.
Hades: You're sweating like a human... next it will be tears.
Hephaestus: You are Perseus, son of Zeus. 'Release the Kraken, ' all of that.
Helius: It'll be nice to be back home. A fisherman doesn't sound so bad.
Perseus: There's no going home for us.
Perseus: Just fix my body... and leave my soul to me.
Answer: The easiest explanation is that would make Perseus a murderer. He's a good, just, heroic man and killing a defenseless person for revenge would be completely out of character for him.
BaconIsMyBFF