(please delete if this is just perpetuating a debate) but I think that Willoughby may not have worse feelings and impulses than many other 25 years old men in any age. It's just that the consequences were much much worse for women to be subjected to to these back then (such a double standard at the time) - irreparable loss of her reputation, societal isolation, poverty. The lack of birth control made this more probable this to happen, so naturally abstinence was preached. It's just a shame all around. And Willoughby didn't care that he was putting a woman at risk and sinking her reputation (since she supposedly did not have that reputation before - he helped make her who she became by helping her initiate a downward spiral), and that's a real shame. (He was definitely not his "brother's keeper".)