A wicked corporation kidnaps your father and uses him as an unwilling subject in medical trials. He dies during one torturous experiment. 

When you find out, you are heartbroken and horrified—and furious. You demand that the law punish the company executives and lead researchers. 

But—you get sick. The only medicine that can save you is the one that the corporation exploited your father to develop. 

"No." To benefit from his suffering and death is repellent to you—let alone to cooperate with his killers in your own treatment. 

"Yes." If anyone deserves to benefit from what has befallen your family, it is your family. Strangers will take this medicine; why shouldn't you?

Both "yes" and "no" feel both wrong and right.