Those are first order effects connected directly to the immediate aim of allowing transport over an obstacle. A civil engineer does not consider "who" will cross or what their aims will be. For example a bridge may allow an enemy army to move their tanks faster during wartime.
Similarly tech shouldn't have to consider whether someone with unrelated goals will use their tech for unwanted aims.
Similarly tech shouldn't have to consider whether someone with unrelated goals will use their tech for unwanted aims.