Q&A 11, Second Answer

My question is: Does human nature ever actively contradict with evolutionary principles?

This is difficult to answer, and involves making clear one's definition of 'evolutionary principle.'  If one means the principles which strictly promote passing on one's genes to the next generation, then human nature absolutely can contradict with them; some humans choose not to reproduce, some humans have sexual orientations which (assuming they act upon only those orientations) do not lead to reproduction, and some humans choose to engage in activities which clearly threaten their lives, therefore jeopardising their chances of passing on their genes.  If one means the principles which promote the survival of the species as a whole, I think that human nature can also contradict with them - oddly enough, by the aspects of human nature which promote the survival of the individual, at the expense of the species.  Overall, human nature is simply too variable to align itself with one particular goal.