who was bearing the expense for a start? and who was profitting?
Well, the taxpayer ultimately, of course. And yes obviously you've got your Haliburtons and your BAe Systems and so on, but you've also got fucking thousands, tens of thousands, of soldiers, sailors, marines, airmen and so on, and all the support personnel, all of them drawing salaries from the public purse... I mean, sure, governments are often pretty cavalier about spending other people's money, but the voting public will tend to hold them to account sooner or later, at least in democracies. And that's before you even consider all those 19-year-olds coming home in body bags. So what did it all buy them? Was America a more powerful country, in the most general possible sense, as a result of Iraq going tits-up?
I think a better explanation is personal venality - How can I win glory for *my* division? How can I increase shareholder value for *my* company, and therefore enrich *myself*? - than a grand overall plan involving the deliberate despoilation of Iraq. It's still about cynicism and self-interest, but on a smaller scale.