I live in a country where there is no cash bail (France). Whether you walk free from a tribunal or end up in pre-trial detention is still pretty much based on the whims and desires of racist (and poor-loathing) police, judges and prosecutors. Notably, homeless people are almost systematically locked up for a year or two before they can face trial for what is usually harmless illegal activity they have committed (such as stealing food from a supermarket, or cracking a squat).

Reformism cannot help the people against the judicial system because the judicial system is not broken: it was designed to oppress the poor and the immigrants, and from this perspective it's quite efficient and well-oiled. No amount of good-will reform (short of police/prison abolition) can change much about it. I can admit the situation may be different in the USA, since i hear (from TV shows, sorry) you can be convicted/acquitted by a jury of your peers? If that existed in France (except for the "Assises" court), i can assure you prison population would not have been multiplied in the past decades for what usually amounts to selling weed, stealing from a supermarket, demonstrating against our overlords, or just being an arab/black person walking down the streets when the cops want to beat you up and accuse you of all the wrongs you can imagine.