During the Cold War, Russian and Chinese scientists would have loved to expose American scientific failings, and vice versa. And there are scientists of almost every religion. I can't image all the Hindu, Moslem and Buddhist scientists putting up with any Christian or atheist agenda. Graduate students have no investment in the status quo, and dream of acquiring an overnight reputation by overturning some orthodoxy. My niece pointed out a flaw in someone else's published data.
History shows that students are very willing to overturn old theories.
Science switched to relativity, to quantum theory, to particle physics, to the Big Bang, and to evolution largely because students were won over by the evidence. In each of those cases, the new theory was attacked vigorously by the old guard. Those theories are with us now because those attacks failed. And finally, scientists have a tradition of admitting their own failures. Retractions happen - for example, Nebraska Man was retracted.