Isn't Myth's school symbol The Eye of Horus? If so, wouldn't it apply to Balance more than Myth? Balance's theme revolves around Egyptian culture, especially Ra, their sun god. I'm very ill-informed when it comes to Egyptian history, but I thought Ra was said to have been directly related to Horus? Yes, stuff like that interests me.
your forgetting about Anubis who was often depicted with scales as for the eye almost every culture has used at one time or you might just be reading to much in to it.
I am really happy that you brought this up as this was something that I was wondering about for kinda a while. I have been told that the symbol was the Eye of Horus before just by other people. It seems like a symbol that could have mythical origins and based on some things in real life. I do not know for sure, though I have seen lots of signs that it might be before.