I'm inclined to agree with steven0461,

Lots of people choose luxury over saving 28 lives.

Actually, this is true even for rather low values of "luxury". I, like tens of millions of other people in the developed world, am a homeowner. Yes, the cost of my (rather modest) home would have saved ~100 lives if I had instead donated it to a maximally effective charity. That isn't what I did. That isn't what the other tens of millions of homeowners did. If you want to count that as sociopathic behavior, fine. But that casts a rather wide net for what would count in that category. Is "sociopathic behavior" even a useful category if it is extended so widely? Is there much behavior left that falls outside it?