They're getting seventh-tier justice. Caseloads that average a single attorney-hour. 98% plea rates. Victimless crimes. Police departments known to fabricate evidence and permitted to persecute, detain, & search with no cause. Years between arrest and trial. Prohibitive bail money. Confiscation of what savings they have to pay a lawyer, on grounds that it's connected to a crime. Tracking of all their communications. A tolerated culture of prison violence. "Stop resisting". Asset forfeiture. Sentence lengths that shock the world.
We don't need to fix all economic inequality to fix these things, because there are other times in our history and other places in the world that have drastically less of these problems, without fixing economic inequality.
The drug war didn't just throw 1% of our population in prison, to satisfy those needs it completely hollowed out due process; You need to have a wealthy family behind you at this point to experience due process as envisioned by the reformers that established it; If you live in the wrong neighborhood and have the wrong color skin no amount of money will pay for it.