HIGH earners of both genders boast an increased libido over their poorer colleagues, but only the wealthy men end up having more sex. As their incomes rise, men and women are more likely to have a higher sex drive, according to a study of almost 30,000 people from 170 countries - the largest survey of its kind. The findings, from an online survey conducted by the BBC, offer fresh evidence for the theory that women tend to be more attracted to men with money and resources, but that a woman's wealth does not much affect her sex appeal to men....