What you mentioned explains the current. But it doesn't imply that the future will be like it.
Another example: you spot a rock moving in space. Hey, it has been moving along this path, because it always has been. We can stop talking about it, and expect it to move in the same direction. Or, we can talk about it, and decide to exert force on it to change its direction.
The fruit of an intelligent discussion on this topic can lead to positive changes in behavior. Many people tend to overlook this, which I find to be an unfortunate side effect of the growing number of people who study, in some form or another, evolutionary psychology: that's how it is now, that's how it's going to be. They complete the first step of explaining why, but they don't go a step beyond that and think, knowing this, what can we do about it? In my opinion this is one of the most important traits of humans and human-related discussions: their ability to learn to self-evolve. /rant
To preempt any rebuttals, notice that I am not making any assumptions about positives and negatives here.