Science is only the name for a human activity. Science is only the work and findings of scientists. It is not a sausage machine grinding out relentless results. Scientists are humans like others, but they happen to be humans with special interests and abilities, just as other humans in other walks of life have their special interests and abilities. Like all other humans they too are fallible and prey to their emotions, ambitions and greed.
Scientists sometimes do err - unconsciously and on purpose.
Scientists are not merely intellectual workers. They have to be skilled with their hands in setting up experiments, and in devising tools or instruments with which to advance the accuracy of their observations. They are, therefore, of two worlds, having both manual and intellectual skills.