At the Guardian, Alok Jha in Research finds 'US effect' exaggerates results in human behaviour studies writes about a study showing that bias in research to produce desirable outcomes is a substantial problem, especially in the USA, but surely also elsewhere as well, for the same reasons, i.e. the search by researchers for peer recognition and career advancement. Indeed, a Cardiff University psychologist, Chris Chambers, states that mainstream science thus "promoted false discoveries and hindered science in a way that did not necessarily self-correct over time." [emphasis added]
We face this problem all the time in our historical research, where much of what is written by mainstream scholars is so far distant from what the actual evidence proves, that completely false theories about ancient eras are rampant, and propagated from one generation of academics to the next.