I remember Vincent phrased it, back in the dev blog, as adding "seriously fucking" in front of anything that gets double-tagged. So, seriously fucking idle, seriously fucking violent, seriously fucking diseased, serious fucking reprisals, etc. I've found it a good guideline.
I think, on a 7-9, you just get one want, so personally I wouldn't use the escalated level. It's like, maybe they're idle because the marketplace isn't seeing much traffic because of the bad weather lately, maybe they're idle because the manufactory is broke again, but it's not both, yeah?