I believe that it is seriously misguided to focus on the biological reasons for paedophilia. The biological focus implies that men are somehow incapable of controlling their sexual urges. Therefore, we need to understand why paedophiles become aroused by children so that we can remedy these arousals. We must never expect men to somehow control their urges nor to behave responsibly when confronted with these urges.
Of course men need to behave ethically, and fostering a culture in which they do so is a key pillar of preventing abuse. I don't think you'll find much disagreement on that point here. It's just that if you happen to be sexually wired in such a way that your desires could always be satisfied responsibly, then it's not much of a challenge.
If you're somehow wired to be attracted to people you can't ever ethically act on your desires with, then it's a battle, not just a life lesson.