Two sisters on different paths. But both had started on the same path, starting when their Father had died, then their paths diverged. First Yang had found her Mom, difference was that Ruby's mom was dead. Raven trained Yang, held her close, and became a true parental figure for the blond. Ruby wasn't held close, she was trained, conditioned, forced to work for the bad guys.

When Ruby was being attacked by Grimm, she prayed for someone to save her, and the Throne of Heroes respond by connecting to her Aura, therefore granting her powerful Installs and mind companions. See as she struggles through her Huntsman Education with the dialogue of famous heroes and deals with being too powerful. (Alt!Semblance Ruby)