It very much is, and I'd be happy to spell out the analogy.

"It will never be necessary to torture for life-saving information, because I have perfect certainty that no information can be obtained that way, so I don't need a moral philosophy that appropriately weighs torture against loss of life."

"It will never be necessary to levy taxes to pay for public goods, because I have perfect certainty that no asteroid will ever head toward the earth, so I don't need a moral philosophy that weights taxation against unprotected asteroid strikes."