Yancy cannot stand being told he "has something better to do." He's heard enough of that excuse when it came to his brother when they were young, alone, and on their own. And he's heard it prior to their mother dying and their father leaving as well. But point being--he knows his fucking priorities. He knows what he has to do, what he owes people to do. And Yancy knows what he owes himself as well. So no, when someone goes "Yancy, you have something better to do", the only thing they're getting back from him is a sharp smile and a "I am doing the best thing right now. Thanks." Because as a pilot and a ranger, he signed up to save the world because it's what he could do. Not because it's what he owes the world.