Why would money have anything to do with the shitty decisions US politicians make?
Well the general reason why everything in the Middle-East is still fucked is because of US. The Middle-East was screwed up long before and US basically trained and armed a lot of locals so that they could defend their home themselves from harassing insurgency, without any further help from the West or anyone else. Ironically these locals, i dont know for whatever reason, mybe because of boredom or something became part of the harassing insurgency themselves.
And than the moronic conspiracytheorists read into it to deeply. It doesnt take a genius the see the simple fact that noone in the West gained anything from Iraq or Afganistan. The US lost and is still losing fucktons of money and people. They arent really gaining any favors or resources to compensate that constant loss either. So yeah. Theres no bigger plot. They just felt like world policing and screwed up even more.