Oh i probably should have specified that the incentive im referring to is getting people to adjust their own beliefs, not stuff like judgement.
Lemme give an example:
Your friend has p(doom) = 1% you have p(doom) = 10%. You overestimate your belief to 20% to get your friend closer to your truly held estimate. With the hope that the larger the difference, the more your friend will revise up based on your judgement
I think that there might be personal or professional incentives towards underestimating or overestimating based on situation, but the moral incentive will always be towards exaggerating your belief.
I feel like there would be a stronger moral incentive for the high doom people to exaggerate, but im having a hard time putting this belief into words.