Macroecnomics is a public policy discipline. It's inherently political. And I'd say there's plenty of macro critical of the present ... regime, but that's not the sort of people who become, say, Fed governors.

If anything has been political, it's been the anti tobacco lobby. Seen these "truth.com" or "truth.org" ads? Full-metal propaganda. Quite creepy, really. All the tobacco companies did was curry doubt.