Social Standing
This one is very underutilized IMO in most TUs, besides the 'do I get a yacht' question and the matter of nobility privilege, and was the stat that got me thinking about the whole use of stats and how they are largely neutered in favor of skills.
I don't have a 1000 star empire with the emperor and 'loyal' vassals as organizing principle, just the opening phase of Earth's exploration and expansion. So I do not have nobles in the classic OTU sense.
Went through thinking about all manner of human history, cultures etc. and decided that this is a valid character differentiation. EVERY society, from ancient to modern democracy/communist/fascist setup, has stratas of people that are 'in' and 'in power', and those that are not.
Also, being human, the power elite AND the common citizen are IMO more comfortable dealing with people 'at their level' across cultures and nations moreso then 'their own kind' at a different social level. There is a behavioral element to one's 'place in society'.
Americans especially like to think that we are all one great big fluffy meritocracy hence ignoring this stat, but even so there is strata based on wealth if nothing else, with behaviors that apply.
I have read some Mongoose Traveller on 'keeping up' re: social events and what sort of neighborhood you live in at what price, and I like that. I think IMTU the stat is actually something tracked to include demographics, a valuation of the neighborhood the player lives in, credit rating/societal reputation, attitudes, honor, and associated behaviors.
So, I am amping up the use of SOC in three ways.
1) SOC can go up or down by player action in game. In particular scandals, conviction in crime, failing to meet financial obligations, or lack of activity within X community can drop the stat, increased wealth, moving into the right clubs/social circles, achievements and reputation can increase it. SOC can change more readily then the other stats.
Players will want to manage it carefully, if for the 'credit rating' aspects if nothing else, and can be a major RP element to increase or prevent dropping.
2) SOC is the base stat for Fiscal Checks.
For loans/investments, it would be a task check with appropriate skills such as Trader, Admin, etc. but basically who you know and what reputation you have, and how much you can expect to raise/be granted. Difficulty Level would be set by the referee by a number of factors in play, particularly how much the amount sought is divided by the character's income, under how much a cloud the character is under with LE or society in general, etc.
The flip side for the underclass is utilizing the power of The Street to work around society's conventions and resource allocation structure to get things done outside the rules set by the power elite. So Social Standing is the primary stat for Streetwise checks, but in reverse from the normal stat/task check- it's rolling SOC or higher with Streetwise added in and DL modifying.
3) SOC is the primary modifying stat for reaction rolls in a social setting.
On a reaction roll, check the difference between the characters' SOC.
If the same, +3.
If the difference is 1, +2.
If the difference is 2, +1 mod.
If the difference is 3, 0 mod.
If the difference is 4, -1 mod, etc. etc.
Each level of Liaison and/or Steward adds +1 to the reaction roll.
In general, the attack factor should not be taken literally except in a frontier/bar/urban hell type setting, the attack should come as a verbal attack. Which may turn into a fight/duel/vendetta, depending.
There are two exceptions to the above.
* If a natural 2 or 12 is rolled, the SOC modifier is completely ignored- kindred spirits or despised personalities have come to the fore, ignoring class behavioral issues due to a strong deep reaction.
* Corporations, businesses, crews, military forces, none could operate if people with critical skill sets cannot get along due to SOC issues, so in a professional setting people tend to use their professional persona.
For that purpose, everyone who is 'being professional' is treated as SOC 8, no positive or negative mods between each other, Liaison and/or Steward +1 per skill level.
If one character is acting professionally and the other retains their 'natural' social reaction persona, the professional is treated as being at 8 and the social at their level, mods and Liaison apply.
Referees may exact different rolls for 'maintaining professionalism' in the face of provocation or excessive length of time 'on the job'.
Note that at upper levels of the military, government and corporations, one is expected to perform at social events, as 'an officer and a gentlemen' or as a gracious business/community leader, and drinking, long party hours or peer pressure may cause a character to drop out of their professional persona, with possibly positive or negative effects.