In my wishful thinking, by far the best way to do that would be for the courts to stick companies with full legal liability for the shortcomings of their "machine learning" systems. And if it's fairly easily demonstrate that GiantCo's ML decision making system is a sexist, racist, ageist...then GiantCo is not just guilty, but also presumed to have known in advance that they were systematically and deliberately on the wrong side of the law.
