The only thing it does insure is that you will not - even after your chin has been bashed in - have made the mistake of closing any interpersonal doors from your side.
Which may not, at first glance, seem like much of a thing to insure, let alone like an exercise worthy of the name of power. But when you come to think of it, it is power - so much power, in fact, that it is the only thing in the world that evil can't touch.