I'm not sure which movie you are referring to. Most Disney movies are about the pretty goodie two shoes being picked on by jealous foes and ends up marrying a handsome prince anyways, living happily ever after. Which to me is setting up false expectations. Most Disney movie are very black and white about who is good and who is so ugly inside they should die.Disney films used to offer much more subtext, at least, than I could find here.
This is different, yet portrays a common inner struggle. The reality that we are neither all good or bad but that circumstance creates and shapes our nature and choices. Often times we trust in our friends innocently enough, only to be betrayed by their ambitions. They steal an innocence from us, thus leading to darkness, until of course the light finds us again.
The thief who rarely sees his ill contribution to the relationship continues believing he is all good on his high horse, yet has the worst curse of all...everlasting paranoia.
Sure they can expound on it if more time permits, but it risk putting the audience who got the lesson already into a coma.