Stunning how scientists who work on this stuff delude themselves into thinking it'll do more good than harm.
That may be correct, but from an ethical point of view, it's completely bankrupt. People who justify doing things they know to be unethical on the basis that someone else will just do it anyway are, of course, being unethical even if they are correct.
Even worse are those people who think others will do it anyway, so it's better if they themselves (obviously being good people) do it instead of those other, terrible people.