Agreed.
Alignment *should* mean at least a little bit of something....more than what weapon or armor or item you can (or can't) use.
Give XP for destroying the book.
Change the Good/Neutral/Evil alignment of the character "down" one step if they don't destroy the book.
Give an evil-aligned weapon/etc for giving it to her.
All sorts of "easy button" options to incorporate that won't tax the programmer's brains too much![]()