I wrote a pair of essays (and a shorter summary of both) on heroic responsibility, and how it could serve as a strong counterpart to empathy as a one-two punch for making good moral decisions:
http://aarongertler.net/heroism/
Seemed Less-Wrong-ish, though my "heroic responsibility" is written for a different audience than Eliezer's, and is a bit less harsh/powerful as a result.
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