The wild west featured much violence between willing combatants. But very little of the kind of strong preying on weak violence that is prevalent today.
My perception of it is the opposite; the strong preying on the weak was so normal that it did not deserve comment. To be weak was considered culpable in itself. There were many fewer weaklings because they were killed off so quickly, not necessarily by violence, but also by weather and disease, aggravated by their being driven off of the desirable, survivable locations.