I don’t agree, they’re all different and deserve to be treated according to their specificities:

• couch fucking wannabe soldier, but scared of gunshots
• top-secret fumbler and self-pissing alcoholic
• Papa Nurgle but a version you don’t want to hug

Okay I was thinking about describing some of them with the war profiteering or corruption angle, but that applies to too many of them so maybe I’m wrong after all