I'm not sure why this is missing. Or if it belongs in the "Set wrong what once went right" trope. But in World of Warcraft, almost the instances in the Caverns of Time subvert this. Where the infinite dragonflight are trying to "Set right what once went wrong" by killing off Arthas, or Medivh and the player's job is to stop them by... Saving the "villain". Rescuing Thrall is.. Harder to determine where the alignment goes. Especially when you do this as an alliance character.

In the film Wishmaster, the antagonist (the Djinn) is released because a drunk dock worker dropped the crate holding the crystal that he was trapped inside, which broke the crystal. The protagonist, Alex, after having made two wishes and seeing the wishes of others going horribly, horribly wrong, wishes that the dock worker in question didn't get drunk before going to work that day, thus preventing the crystal from being shattered and, consequently, averting pretty much the entire plot, keeping the Djinn trapped.

Even though Alex didn't go back in time physically, it seems like this would still be Set[ting] Right What Once Went Wrong.