[ Oh, he sees it. Quietly thanks the lucky circumstances that allows him to stay sober through this conversation while Piter is everything but — it's a rare opportunity and he intends to make as much of it as possible.
Luckily, he's trained to conceal his motives. It's even easier here, without the revolver and FBI flak vest to remind his opponent of what he actually is. ]
It's not really a choice, is it? I'm human. It's a natural instinct to care about others, especially in the face of an outside threat.