For instance Valve has a policy that recreating fonts/typefaces from their games (that are not protected by copyright) is a breach of the Steam Subscriber Agreement (SSA). But as far as I know the SSA does not apply when the user has never used Steam, and these font(s) can be obtained from the websites of the respective game(s) for recreation (they do not have hotlinking/download protection), so why this policy exists?
In order to be in breach of a contract, one must be in privity of contract with the other party.
I, for example, am not in privity of contract with Valve. If I were to reproduce their fonts or typefaces, or even if I were to infringe Valve's copyright, I would still not be party to any contract that I could be in breach of.