There's a difference between being sued and being sued with a high chance of conviction. I could sue you for anything I want. That doesn't mean I have even a remote chance of winning. There's also a difference between being sued in a civil court and being prosecuted in a criminal court. In other words, a med school will probably care if you're convicted of malpractice or patient abandonment or something like that. There's no one-size-fits-all here.