[loafa]

Well, it's not that equivalent a situation. I'd feel personally responsible for the particular set of individuals killed by the genie rather than some other set of individuals. That's too much responsibility for me, I didn't ask for this crap, I should know better than to trust random genie bargains.

[taneq]

In the least convenient universe (and therefore the most useful for examining this moral quandary), you don't have the luxury of dodging the question. If you choose to tell the genie to do nothing, then you're choosing for X people to die to save Y.

(The scenario needs work, though - it should be Y people chosen from the road users in question, not just Y random humans.)