[Neslit]

What the heck? Sorry, I didn't understand any of this. Are you saying that with real moral issues, it always trivially wrong to torture? This seems simply false.

If I capture person X and X's laptop Y, and X tells me under no duress that Y contains the location of a nuclear bomb that X has placed in a major city, and I have other strong evidence that this is true, but X refuses to give me the password to Y; then it is moral (but rightly illegal) for me to torture X for the password to Y.

Torture is not literally incommensurate with any other bad thing. Then the question arises, how do we, in full generality, determine which is the greater of two evils (or the better of two goods)? The torture vs. dust specks thing is supposed to disabuse people of the unhelpful notion that some things are somehow incomparable in terms of goodness and badness.