I will share an anecdote about a paper I was involved in. The work was done in collaboration with another lab within my school. One of the results suggested that one of the instrument was out of alignment and possibly giving false results. I raised this with the head of the other lab and after speaking with his post doc he said that everything was fine. I asked to see the calibration data (there was none), but I was assured that everything was fine and they were going to submit it as it was. At that point I went thermonuclear and said if this paper was submitted without the dubious values being checked I would write to the journal asking for it to be withdrawn. This caused a huge ruckus within the school including visits from the head of school and the dean telling me I was being “unreasonable”. I stood my ground and the post doc eventually ran the calibration experiments which showed the instrument was out of alignment and the results were wrong.
Of course this burned a lot of bridges for me and it would have been better for me to just shut up and let the paper go out wrong.