“Or some other acceptable incentive.” Ok sure, that leaves the opening wide for any possibility including “throw your friend under the bus or I will literally s

“Or some other acceptable incentive.” Ok sure, that leaves the opening wide for any possibility including “throw your friend under the bus or I will literally shoot you in the head,” “this 1 billion will be distributed to the needy if and only if you block your friend from receiving a promotion” or even more realistically, “friend 1 gets a promotion or friend 2 gets a promotion.” At any rate, for smaller things, my experience is that most folks will not throw you under the bus. At high stakes, it really just depends on whether the relationship with you (and folks you might complain to) and/or relationship to whatever intrinsic value system matters more or less than the stakes.