I think in these experiments you’re not supposed to care about the experimenters. Ideally the experiments would be done with something non-zero-sum, rather than with money, but that’s much harder to arrange, so instead they just rely on the unspoken convention that the experimenters’ costs should be disregarded.
Saving them the $3 isn’t doing them any favours. They’re willing to pay $10 to know how you’d distribute chunks of utility. You’re taking $7 and not answering the question they want to answer.
I think in these experiments you’re not supposed to care about the experimenters. Ideally the experiments would be done with something non-zero-sum, rather than with money, but that’s much harder to arrange, so instead they just rely on the unspoken convention that the experimenters’ costs should be disregarded.
Saving them the $3 isn’t doing them any favours. They’re willing to pay $10 to know how you’d distribute chunks of utility. You’re taking $7 and not answering the question they want to answer.