"Snow White", or, uh, as it's better known:
"Aarne-Thompson folklore Classification Story Type 709".
We know most of these tales via The Brothers Grimm via Disney (Disney: the Google of its day: running round buying up childrens stories cheap and copyrighting them! (Whereas Google just, uh, digitises other people's work and 'borrows' it)), buuuuuuu-u-u-ut, the point here is that most of these tales are folklore aggregates - conglomerations of older ur-story threads n archetypes - they're meta-tales derived from ancient theme-clusters...each central European country / principality had its own local variant.
Of course, if The Evil Queen or Snow White solved their own problems they'd be no conflict, no drama, NO STORY.
And no one to rescue Snow White / Cinderella / The Little Mermaid / Belle / etc.
But, hey, doesn't the Evil Queen / Stepmother Archetype deserve a happy ending too?
(Evil Queen = Partial-Witch / Proto-Goth. Isn't she more in step w/ modern sensibilities?)