I’d bet this quote has already been posted here (I searched briefly), and I’d bet more that Sam has encountered it before, but I just wanted to be sure on both counts:
Science, however, cannot create ends and, even less, instill them in human beings; science, at most, can supply the means by which to attain certain ends. But the ends themselves are conceived by personalities with lofty ethical ideals and—if these ends are not stillborn, but vital and vigorous—are adopted and carried forward by those many human beings who, half unconsciously, determine the slow evolution of society.
— Albert Einstein, Why Socialism?
Doesn’t prove anything of course, but Einstein must certainly qualify as an expert on the method, and therefore, the scope, of science. His opinion is worth considering.