I'm pretty sure that if everyone did what their explicit morality told them to we would have endless global religious wars, but that doesn't mean that a world where people who build sane explicit moralities for themselves wouldn't make the world better by following those moralities in so far as they can.
Well I had to reread the original article as it was written more than a year ago...
But what the speaker was suggesting was if people agree to his scenario where giving up all but subsistence income to save 10 lives, then they should in fact now give every dollar they make beyond a basic subsistence level to charities that would distribute it to places were people want for food or clean water.
So it was not proposing a "middle-ground"; at least in my reading of it. You could almost extrapolate that he believes it immoral to posses above a subsiste...
I'd be really interested to hear what the Less Wrong community thinks of this. Don't spoil it by reading the comments first.
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