The violence of hierarchy is the violence that the powerful use against the dispossessed to keep them subordinated. As an example, the violence committed for wealth is socially invisible or committed at enough of a distance that its beneficiaries don't have to be aware of it. This type of violence has defined every imperialist war in the history of the US that has been fought to get access to "natural resources" for corporations to turn into the cheap consumer goods that form the basis of the American way of life.