User blog comment:FTWinchester/Season 9 concepts/@comment-1509826-20130908231102/@comment-5619706-20130912122639

It helps us determine strength of character to a degree. Anna Milton was tortured by Heaven and was still dedicated to free will and saving humanity. Dean broke under torture and showed remorse, but not before we found out he actually liked to torture people. Meg under torture could easily just join Crowley to save herself, but she held on to her own beliefs, and by extension, to the loose alliance she used to have with the Winchesters and Castiel. So, in a way, it shows another contributory factor to Meg's character development, although behind the scenes.

Funny you mentioned that. In my experience, very few people liked Meg's redemption arc. I'm not hatng on Crowley's redemption, by the way. I think I'd rather have him as a Winchester ally than a Big Bad (he bores me most of the time). It's just that I was sold more on Meg who actually took it on herself to change. Bonus points for her on being the first demon to do so.