In the present work we will devote ourselves centrally, from Latin America to the scientific examination of some branches of present Western science (personality psychology, history science, social economics, biology, species). The common general conclusion is that they thus do not fully meet the requirement of being modern sciences, remaining stuck in pre-modernity. The common causal factor found in all cases (apart from some circumstantial fault) is the particular social ideology, which is spread mostly intentionally (reductionist centering on one's own ego). This itself causes (sometimes inadvertently) most western intellectuals (including Nobel Prize winners) to make (sometimes discriminating) mistakes in scientific conclusions. This the biologist MONOD, called 'the Greatest Evil of all', in Human History. We here give the way to correct, scientifically, this great Evil, which is diffused in great part intentionally, all over the world, transforming it not only in a truth, but in a great good, for all Humanity.