Well it does make a difference when you're talking about the countermeasures that society (or in this case a private company) should adopt to fix the problem. I

Well it does make a difference when you're talking about the countermeasures that society (or in this case a private company) should adopt to fix the problem. If you claim that the cause for male violence lies solely in the upbringing you might in the best case waste a lot of resources in the worst case cause a lot of psychological suffering so common in all our attempts to "fix" the "wrong" behaviour of kids (left-handed, homosexual, ...).