Noone made any money or got any oil from the Iraq War. The US is an oil exporter and doesn't have any oil contracts in Iraq. In fact, no one makes money from any wars, and defense contractors profit less during wartime than peacetime.

One universal principle about US politics is that many people try to sound savvy by claiming X thing is obviously about the money, or that some secret evil competent person did something and successfully profited from it, and then if you look their explanation is always wrong. In fact there are no competent evil people and bad ideas are simply just bad for everyone.

…Also, Bush's PEPFAR program was so good that I think he's clearly saved more lives than any other president even if you count the wars against him.