I ran into a similar problem. I was doing estimates of time and costs for projects which then went into the business case. As with OP my estimates were calibrated and usually fairly accurate.
Others’ estimates were massively biased to low $ and time and often wildly wrong—in one case too low by a factor of 12.5. This is not rare of course—Microsoft Word for Windows V1.0 took over 5 years but never had an “end date” more than 1 year out.
The problem is that the business units wanted lowball estimates so they could get their projects started. It was then not too hard to exploit the sunk cost fallacy to keep the project alive. They felt I was not a “team player” and so forth.
I ran into a similar problem. I was doing estimates of time and costs for projects which then went into the business case. As with OP my estimates were calibrated and usually fairly accurate.
Others’ estimates were massively biased to low $ and time and often wildly wrong—in one case too low by a factor of 12.5. This is not rare of course—Microsoft Word for Windows V1.0 took over 5 years but never had an “end date” more than 1 year out.
The problem is that the business units wanted lowball estimates so they could get their projects started. It was then not too hard to exploit the sunk cost fallacy to keep the project alive. They felt I was not a “team player” and so forth.
See the extracts from Moral Mazes https://www.lesswrong.com/posts/45mNHCMaZgsvfDXbw/quotes-from-moral-mazes for more on this kind of world.