Most of these "cost management professionals" are "professional" in only one sense of the word - they do it for money.
They latch on to the fad of the moment, and ballyhoo it until the next fad comes along.
I remember sitting at a Subway in 1996, enjoying a sandwich made with fresh cold cuts and veggies, while reading the Business section of some rag with a title "Quality Was a Fad" or some other crap.
Leadership take many things, but leadership without vision is lost.