I don’t think I’m optimistic at all. Police departments already pay out damages. It’s not some wishful thinking. Police already lie, plant evidence, threaten witnesses and make deals with criminals. And they still do lose civil cases and pay. Of course it only happens in the most extreme cases but it does actually happen. If each such case meant they lose money they would try not to have such cases. How? By getting rid of the most aggressive officers. It would not fix all the issues but it would help.