I'm sure I said something along those lines earlier... and guess what? I found (through research) that a common trick of sabateurs is to throw the switch at train lines to cause crashes. It resulted in an accident in one case (unfortunatly I can't source it 'cos I did this last night and it was unrelated to this thread at the time, I only just realised the link. I do remember Wiki though).If it was a dead road, the train would crash in to a dead end and BooM !!
More people are dying from you.
Some people are still missing the point.
There can be no "spidey powers" to save everyone. No one except for these six people will be affected, so there are no other consequences to worry about.
It's a very simple question - would you kill one person to undoubtedly save five, assuming no other effects would yield any consequences toward other people? You know, for the sake of the question, let's assume that no other people exist, save you and these six.
These factors take it all apart. It's no longer the real world, a very different set of circumstances, and probably slightly biased too; everyone would save the 5 guys so they have more company in this plane of mundane existance.
There is always an effect, this question doesn't become quite the moral conundrum it should be when you apply those factors. It just becomes another question for people to voice their opinion and move on, no real debate.