Stronger guardrails can help, sure. But getting new input and building a new model is the equivalent of replacing the entire vending machine with a different model by the same company if one is failing (by the old analogy).
The problem is that if you do the same thing with a llm for hiring or job systems, then the failure and bias instead is from the model being bigoted, which while illegal, is hidden in a model that is basically trained on how to be a more effective bigot.
You can’t hide your race from the llm that was accidentally trained to know what job histories are traditionally black, or anything else.
A lot of journalists, at least historically, wanted to do this. Unfortunately they’ve been more and more kneecapped over time by news companies either pushing for a bias, or for clicks.