Always remember that World War II was useful, that Vietnam was useful, that the Cold War was useful. Not for you and me, but for the people who made money from them, directly or indirectly. Heck, for Vietnam we even have ample evidence: the Pentagon Papers. So when you look at a war now, do you really think it's NOT useful? Once again not to you and me, and certainly not to the people dying in it. But someone's making money from it and they're having a proverbial blast.