"i don't think evil needs to mean evil sadistic monster, especially neutral evil".
However, the neutral evil worldview, in most editions of D&D, as well as Pathfinder, is characterized by an extreme degree of selfishness. It's funny, even she's a little surprised by her genuine compassion for others and her desire to justify Shar as The Sacred Darkness, when most of her clergy just hates everything. She’s also the least cruel of the three “evil” companions, and approves of acts like taking care of animals and being nice to children. I think she is far from the generally accepted standards of kindness, but it is difficult to call her truly evil.
Either way, due to her amnesia, we don't know how angry she was originally.
