But they're not going to, because the people in charge don't sincerely care about the topic.
As for Iraq: I don't see much evidence that US actions there were "best-intentioned", or even well-intentioned.
It's not like people aren't still frothing at the mouth to repeat the same mistake in Venezuela or Palestine or Yemen. Maintaining empire requires shows of force. There's always profit to be made along the way. It motivates itself