From reading many thousands of threads on rootschat over many years, I get the impression that a lot of people think that the sun shone out of their ancestors and they they could never have done wrong.
There might have been some injustices (and there will be two sides to every story) but you’ve got to be realistic - plenty of our ancestors would not have been nice people, and many would have been criminals.
There’s nothing you can do about any perceived injustices from many decades or centuries ago. If the injustices happened more recently, there may be avenues you can explore via legal channels. A Google search might point you in the right direction.
Added: I don’t think any crime is depicted as glamorous, or a “lark”, nor do I think anyone “laughs” at victims of miscarriages of justice. Not sure how you came to the conclusion that they are/were.
