The human shortcomings of scientists does not impact upon science. Bad science, bad scientists, liars and charlatans abound, but science finds them out. That's the whole point of science. It's always subject to alteration. Even the fact that the earth moves around the sun may be disproven by the revelation of something of which we are at present unaware, but it will be science that reveals such. Science is not a belief system. It simply means knowledge. I would suggest shaving the little green men with Occam's razor.