Yeah that could work! Since this fairy prince like really values Sam's spirit for her otherworldliness. But the fact that he's virtually abducting her sort of tarnishes the value and August's willing sacrifice of whatever he's offers him is essentially worth more.

Also maybe it's worth more because the act is selfless, especially after all of the things he's done for Narissa. And, if he's starting to feel something for Sam at this point, that could also increase his sacrifice's value.