If a contract between two parties existed, and one party breached it, when must the other party show damages to have the breach remedied? The following examples comes from this question where people in a meeting were told they can't take notes.
Assume that there was a signed contract where the people attending the meeting agreed not to take notes. If someone was caught taking notes but no one suffered any damages because of it, could there still be legal action (such as getting sued)? Must damages be shown to relate directly to the breach and not anything else, for example if someone took notes in the meeting then disclosed something that was intended to be kept confidential, would a defense be that what they had repeated that had memorized and had nothing to do with notes or could they still be sued for taking notes?
It's illegal not to wear a seat belt even if you don't get into a crash, so I'm guessing the answer to my question is not always.