you're idealizing science and literally begging the question[0], in this case, making an a priori assumption that science must proceed conservatively and then trying to rationalize that position.

conservatism unduly burdens science by overly valuing correctness over exploration. science advances on the latter, not the former.

be wrong, it's ok. it only adds to our scientific knowledge. we can't even know when we're wrong without a grueling many attempts at being right.

[0] https://en.wikipedia.org/wiki/Begging_the_question