It's not a question of using it losely, but communication. Any definition is fine, as long as everybody agrees on which to use.
But I do agree with you that people who are into BDSM understand more of human social dynamics. Which means that we're likely to have to do a lot more explaining when befriending the lesser enlightened.
It's like I constantly amaze people with my insights into work mates power-struggles and see clearly peoples petty motives for exactly what they are. I'm sure it's not a super-power. Rather just insights I've gained from playing it rough with ladies. Especially understanding what drives a submissive has been important for me.
I quickly understand what to do when a submissive man of the older generation is in a position of power, (= rarely a good thing). Or when I'm at a meeting and there's a conflict irrelevant to the task to be solved.