User blog comment:IamJakuhoRaikoben/Chapter 468: Memory of the Stars, Review./@comment-5288632-20160110021038/@comment-7418318-20160110092351

It certainly is the most likely explanation why we went on his long journey (during which he finally turned evil, merged with Capricorn and hooked up with Hades), so it's at the very least a contributing factor for his fall.

I wonder if the incident might also be the reason why he learned Human Subjugation Magic. Maybe his original intent was to prevent people from doing evil deeds, which would be a nice irony, since he later used this very magic for his own evil deeds.