I do not expect science to be absolutely correct. Even when done correctly, people running the experiments are subject to human errors and variables that are unforseen. So, there are going to be some wrong answers. Then, when someone does the same experiment more carefully or with better technology, they get better results. Even without any fraud, science would have this sort of improvements due to advancing technology.
But, when regulators or the Church holds back science, it creates all sorts of problems. Scientists that are paid by drug companies or the Establishment to fabricate the conclusions and then alter the data to fit the erroneous conclusions are not true scientists. They are scammers working for the Establishment, and do nothing to advance true knowledge. Then the honest scientist that gets better results will be hounded out of the field, his reputation sabotaged by the Establishment that doesn't want change, and anyone else that wishes to conduct and publish honest experiments will be warned that it will result in the Establishment ruining their careers, too. This is not science--it is a form of religion, where the Establishment is the God.
Religion, like the fake science run by the Establishment, also depends on an external authority dictating beforehand the answers. This time, no experiments are actually run. Instead, they just give you the conclusion, and anyone that doesn't accept it faces sanctions. This is the surest way to be wrong more often than not, and to stay wrong. The Watchtower Society is guilty of this, as anyone that has read the Asleep! magazine will tell you.
I would rather have honest science that is controlled by experiments and results than Establishment "science" or, worse yet, religion. Honest science is likely to have mistakes. However, the mistakes get corrected in time. New light that is the result of actual scientific improvement, like better technology, actually improves the field. This is true with Pluto not being a planet now that other Kuiper Belt objects have been found that are similar to Pluto. It is true with computers. It is true in medicine. It is true with energy sources. The first to go into these fields had crude technology and did not know what they were doing; yet they still managed to get some results. Refinements have led to better products and results--to me, that is true advancing truth.