Now I see what is fundamentally wrong with the article and you´re reasoning from MY perspective. You don´t seem to understand the difference between a permanent sacriface and a temporary.

If we subsitute the spec dust with index fingers for example, I agree that it is reasonable to think that killing one person is far better than to have 3 billion (we don´t need 3^^^3 for this one) persons lose their index fingers. Because that is a permanent sacriface. At least for now we can´t have fingers grow out just like that. To get dust in your eye at the other hand, is only temporary. You will get over it real quick and forget all about it. But 50 years of torture is something that you will never fully heal from and it will ruin a persons life and cause permanent damage.