If Torvalds is trying to engender a culture by being the only one swearing then I'd be very curious where he learned that technique and how he was measuring its success over the many years he's exhibited that behaviour. Occam's Razor suggests that the more likely cause is that he's just an angry man who can't (or doesn't want to) moderate his behaviour.

I don't want to assume too much about your wife's job or personality, but I'd also assume she would swear in a way that was reciprocal with those under therapy, based on a communication style they had established together... as opposed to her swearing at them while they were being perfectly polite.