I did a graph search using Google ngrams of the words sex, drugs and genius in books from 1800 to,the present. Drugs have always outstripped sex, but the gap reached a plateau of wideness in 1918, shrank to almost nonexistent in 1930, and has widened continually since then. In 1800, genius showed up a lot, sex and drugs barely a blip on the radar, which of course did not exist in 1800. Genius has gradually declined over the years, until it fell behind drugs in 1966, and lost out to sex in 1978. What all this means, I couldn't begin to tell you.