To the best of my knowledge, there are no papers about "we deployed this big ethical system in the wild", although some of the big companies have begun testing

To the best of my knowledge, there are no papers about "we deployed this big ethical system in the wild", although some of the big companies have begun testing similar internal efforts on a small scale. A lack of public efforts seems to be the equilibrium we're at, because any public effort is definitely going to attract a bunch of essays like this. Any partial attempt that looks like "we're trying to be ethical" is going to get scrutinized hard. Continuing to put out more hypothetical theoretical work ("we prove this result about this algorithm, and it achieves a well-defined fairness goal on this common dataset") while cautioning that actual deployments should be put off until we understand everything better ("the fairness goal we define is probably not perfect, we are not saying you should use it") is much safer.