This seems completely incompatible with the actual concept, but certainly more palatable.

The problem with the concept as a whole is that it imposes an impossible requirement -> I will be maximally guilty whatever I do -> why even bother doing anything. Humans (with rare exceptions) just aren't built such that heroic responsibility works for them. If I'm only responsible for close relatives and friends plus some limited charity, I can actually fulfill my responsibilities so there's a reason to try, and so unheroic responsibility is a better model to live by unless you want to impress LWers.