Personally I want to see events where you have no choices but to outright fire the idol or get a contract blacklist where your business proposal failure rate jumps up considerably and actual fanbase loss. Or hell even a chance of critical injuries from events. Create sense of anxiety and risk that comes with the industry that isn't just a couple of scandal points and a ding on your yen earning.
Another worse case scenario idea is to for STAFF in trouble or help you out, no longer just about your pretty girls up front but your talent in the back also has their own wants and needs. A music producer who decides to double dip despite a non competitive clauses forces you to either let him get away with it putting upcoming singles at risk of losing fans because both songs sounded the same to a choreographer who's provocative choreos (ala Stellar's Marionette) gets your stuff not approved for tv music videos, costing you buzz if you had a PV with it.