Executives want to know that their organization isn't wasting time or money. For logistics organizations, that means trucks should only be doing what is necessary to support the business, and nothing else, to ensure that time and money are invested only in value adding activities.
As the saying goes: "One does not get promoted based on cost avoidance."
One of the reasons is that costs avoided do not show up on financial statements. On the other hand, costs incurred - including security outlays - are visible, and often become prime targets for the CFO's cost-cutting knife.