I think that’s the joke, Clyde!

The one use case I can see being valuable is dynamically reading a custom name. In Skyrim for example, all NPCs refer to you by your title as Dragonborn. But some smart person made a mod that uses AI trained on the NPC voice lines to embed your character’s name into dialog!

As long as voice actors are appropriately compensated/protected, say with royalties for every game that uses their likeness or an ironclad contract making sure the company can’t stiff then out of future work, I feel like that could be a great thing.