A fair bit of "science" is about providing training to the following generations. Sure, your example isn't going to turn up any new insights into structural racism but it is something that you can point grad students at to learn how to capture data.
Diabetes is getting worse, just saying that "we looked at poor people's problems 50 years ago so don't need to look at them again" isn't going to flag it up.
Diabetes is getting worse, just saying that "we looked at poor people's problems 50 years ago so don't need to look at them again" isn't going to flag it up.