Yeah, the people profiting from the constant war do not care about the costs paid by the peasants. They use wars as a turn on their world war board game. Nations are just sections of the board, and the resources those sections provide are the incentives.
No one seems to care about war when it is elsewhere. They don't care because it isn't their children being droned. It isn't their loved ones being murdered by artillery. The war isn't in their neighborhood, so they just don't give a damn. Humans, as a species, are quite disgusting as a majority for that reason.
As @crewjohn said, war is very profitable for certain groups of people. It is used to secure resources, steal gold, and change the imaginary lines (borders) between nations (tax farms). Most people have no idea though, or they just don't care. Again, it isn't their children being murdered.