disagree. this conflates leader/streetwise/liaison/rank/etc with ss.
Huh?
That depends ENTIRELY on how you ref it. Since this arena is not classically defined, the elements you list aren't conflated at all unless the ref makes it so.
The way I'm using it-
Low SOC with streetwise in use is about contacts in the underworld, same as High SOC gets you official contacts and resources.
Leader would be used to motivate people into doing things the leader wants done- applicable at any level, or the professional SOC 8 level I postulate.
If there is any charismatic reaction or stat to use, Leader should be it.
Liaison would be the all-purpose reaction skill, because gosh that's what it IS, the specialized skill of getting dissimilar people with different or conflicting agendas to be able to talk, possibly work together. In the case of SOC discrepancies, it works for anyone.
Probably the most important thing the Liaison person should do is get everyone to put on their 'professional' persona, then work out agreements after precluding SOC-driven poor reactions. Same with Leaders, they can do what they do more effectively without SOC failures.
Rank would work within a service, but IMO would be more about 'following orders', the reaction to a general's persona could still be disgust but the order is followed.
These skills are all different, and would interact with SOC in different ways. I don't see how I am conflating them systematically.
I hope you are not thinking nobles should get some kind of awe/charisma bonus or that I am suggesting that in the slightest. More an ease of interaction of each SOC level with 'their own kind'.