User blog comment:SayuriDarling/The House of Hades Official Discussion/@comment-4503464-20131008201117

I was actually...pretty sad to see Iapetus go. His entire role in the book just proves that anybody can be good, no matter how inherently evil they may be.

Reminds of this quote from the dragon Paarthunax in The Elder Scrolls V Skyrim:

"Which is better? To be born good, or overcome your evil nature through great effort?"