It sounds like you’re saying that the thought experiment is unfixably wrong, since it can’t be made to match up with reality “outside the experiment”. If that’s the case, then I question whether people are “giving the wrong answer”. Morals are useful precisely for those cases where we often do not have enough facts to make a correct decision based only on what we know about a situation. For most people most of the time, doing the moral thing will pay off, and not doing the moral thing will ultimately not, even though it will quite often appear to for a short while after.
It sounds like you’re saying that the thought experiment is unfixably wrong, since it can’t be made to match up with reality “outside the experiment”. If that’s the case, then I question whether people are “giving the wrong answer”. Morals are useful precisely for those cases where we often do not have enough facts to make a correct decision based only on what we know about a situation. For most people most of the time, doing the moral thing will pay off, and not doing the moral thing will ultimately not, even though it will quite often appear to for a short while after.