We have to understand that our concept of pedophilia and childhood sexuality is very recent, and though sexual attraction to young girls in the 18th century and earlier in Europe was considered strange, it wasn't a crime, and the average marriage age of women around the world was still 14. As capitalism developed, that age continued to increase, until today when woman in advanced capitalist economies aren't expected to marry until their late 20s, and the late 20s is the age when we consider someone to be a fully mature adult, though we say that 16 or so--around there on average--is old enough to make decisions about ones own sexuality.
I am not an advocate for removing the age of consent or any radical policies that would resemble those that came out of western Europe in the late 60s, but merely pointing out that the entire moral component of the issue is deeply intertwined with contemporary history, and we can't forget that when examining the impact of technology on society.