... there sure are a lot of really shitty people in the supporting cast. Not even talking about the Atulle king either, because, considering the might of the people making demands, one woman is a very reasonable sacrifice. Succession issues aside of course.
This really doesn't warrant the threats and actions of the knights chasing her when we first met her. Her extreme survivor guilt type hangups on the other hand, yeah, that feels about right.
Also, apparently slave crests come in a variety of "permission" levels. From the sound of it, the ones on the beast folk are generic, putting them under the control of a very large possible number of people whereas her highness is probably only controllable by high ranking Brau folk. Certainly was useless to the guards chasing her.