I don't know how things would have turned out, but I think that Jeb knows things we don't know, and I think he made a very difficult decision to save the lives of many versus the life of one.
I think the fact that Jeb didn't act shows us how corrupt the system is that the police, etc. that he should've been able to use to take Terri into custody weren't available to him.
But I don't think it is evidence that Jeb is corrupt or a coward.
After all, it is because of Jeb that her family had Terri these last two years.
Jeb is a coward and could have done a hell of a lot more for Terri than he did! Wake up, our leaders have betrayed us!