It is worse to actively participate in a death then to simply allow an individual to die  While people die all the time, it is exceptionally rare for one human being to intentionally cause the death of another, even for a perceived “greater good.” The difference is that when one actively kills, one causes the killing. They bring about something that would not otherwise have happened, and they set it in motion. What is key is the moral actor’s role in the very inception of the threat to the life of another person. Their responsibility for the resulting death is far greater than had they committed the same non-action as every other person who wasn’t present to make the decision at all.