go unpunished
remain unpunished

Police officers know that, for them, such actions go unpunished.

We have let you kill a council member and go unpunished.

"No crime has ever gone unpunished," he wrote in one of the letters.

You know the saying about no good deed going unpunished.

In the world of trade policy, no good deed goes unpunished.

The world has become a place where no good deed, let alone bad one, goes unpunished.

This was at least 30 yards off the ball, but went unpunished.

If drivers go unpunished for such behavior, they have no reason to stop it.

Boys in the jungle who could do anything and go unpunished.

In the perverse financial world, no good news goes unpunished.