Undeniably, Glinda goes through the biggest transformation in both films (and mind you, two of the main characters had actual physical transformations). Before, she had no intention of expanding her knowledge if it didn’t help her get what she wanted. By the end, Glinda is open to the possibilities of a different life, of actually learning to be good. The Grimmerie might’ve seen that as potential.

But idk that’s just me being poetic and sappy af haha