Cash bail drastically over affects poor people. If you dont have money to put up or assests to leverage, you hsve to take a loan that costs 10% of the loan total, i.e if you need 50k, you still need 5k to give up.
If you cant do the above like many poor people, you are stuck in jail while not being convincted of a crime. This almost always costs you your job, your home, all your belongings, your car, custody of your children, on and on. There are countless horror stories of people spending years in jail awaiting trial to be aquiteed and released, having lost everything they have in the world while being found not guilty of the crime.
This system ends that. If youre a flight risk or violent, you stay in jail. If not, you can carry on your life until youre convicted, which is both just and reasonable. It puts the poor and the rich in the same justice system, and thats a good thing.