Hence why I (personally) see a distinction between Social Status: B+ (denoting "respectability" and character reputation/connections) and the Noble career path (LBB S4) ... the latter of which is required to find a Position/Posting as a Noble representative of the Emperor to the many (autonomous) worlds within the Third Imperium.
Kind of like how you "have to join the army to be an army veteran" ... you have to have taken up the Noble career path (at some point) and successfully rolled for Position before you become {insert noble title} {insert mainworld name}.
- Knight Boughene (SS: B)
- Baron Kinorb (SS: C)
- Marquis Aramis (SS: D)
- Count Efate (SS: E)
- Duke Regina (SS: F)
... you get the idea.
People who take up the Noble career path but fail to achieve Position are basically "staff" to someone else who HAS achieved Position (until they can achieve Position themselves).
Achieving Promotion on the Noble career path is where the "game of musical chairs" comes in, because someone has to depart before someone new can come in and take their place ... and there's always going to be more "applicants" for Positions than there are postings that need to be filled.