I thought of something really awesome, I've noticed that vehicle stores don't have monthly or weekly payment plan choices, why not make that possible and if people don't pay on time. Boom, their vehicles get repossessed via PC tow truck drivers.
This will drive RP and even more chaos. Suddenly going bankrupt and you find out that an TSX repoman is coming? What will you do? Shoot? Hire a mixer and have them beaten to death or surrender your vehicle.
I imagine repomen will be like taxi cab drivers, they serve three sectors and the payment depends on the mission. Need to repo a gangster? Good pay but /EXTREMELY/ dangerous, you'll need to hire a couple of bodyguards or try doing it yourself if you're cheap, Paid to repo a lawabiding citizen? Decent pay, etc etc.
This will grant an interactive job and a bit of feud.