[Alt-text] Spongebob and Patrick work out their strategy with a utility based analysis.

We tend to assume that the means accomplish the ends, but that's not necessarily the case. The trolley problem never looks at where the trolley is going, just how it gets there. But if the way we want to get there doesn't actually go to the destination we want, then it's not a solution. Hope this helps. =D

edit: trolley is spelled with an e