What if we had a new stat that affects work, combat, crimes and might even help you to bust out of jail from time to time? You would have to take time in the tavern Knuckles 'N' Cheers. Like a course, but the timer would take maximum 12 hours to stay there and raise it. Like a education course, but you can choose how much time and get random encounters from the local NPCs. Get new dialogues, brawl similar level players in the main floor.. Or get into the fight club at the basement. People would bet on your skills as you fight among a little higher levels or lower levels to farm experience and get into a more competitive mode.
Charisma will also allow a next fighting ability. Taunt. Which can lower the opponent accuracy momentaly to allow a high critical hit. But if you got your charisma higher than the opponent, you can resist and give them the finger. A 50/50 situation.
At work, your salary can get higher. The requirements lower to get promoted, get a bonus paycheck or as a company your publicity can double on the occasion from having multiple high charisma employees.
And in crimes, you could get much better loots and avoid getting arrested.
The possibilities are countless, I hope you can propose your thoughs on that and have a great time !