This is confusing. Does your use of violence change your intended destination, or does it just exert certain optimization pressures on future world-states, as do all of your other actions?
Read the (long) linked-to article from which the quote stems. Basically the point is that using violence to achieve a goal teaches the people involved that violence is an effective, legitimate way to achieve goals - and at some later point they will invariably have conflicting goals.
Y'all know the rules: