Basically the game portrays her as someone who isn't exactly inherently evil; the drow lady is simply a broken person, who due to upbringing and her personal history became a tragic villain. She tries to play someone "strong and powerful", a being who does not display any weaknessess. This is just a ruse, which we learn only if PC chooses to side with Goblins.
And how exactly do we learn this? If a character is capable of feeling fear and can feel sadness due to loss they are not strong and are tragic and broken? Strong are only those that never feel fear and dgaf about anything?