Maybe the question is: are there any cases where insider information being leaked is a generally bad thing?

there are currently cases under investigation of one or more IDF soldier using classified info to bet on Polymarket. Even if you oppose recent IDF actions, I don't think anyone's life is getting saved by changing plans after seeing some weird bet on Polymarket. It's worth noting that the military police is only charging with violating security clearance for personal gain, and not for treason, suggesting that the bets they made weren't really sending a useful signal. I don't know exactly which questions they bet on.

I'm a little baffled how they got caught, although it wouldn't surprise me if they just boasted too much.