Except that even studies by the US Department of Justice show that risk of financial loss has one of the lowest impacts on likely to appear in court. This is also not recent discovery, this was heavily researched in the 70s.
Ironically just releasing people as soon as possible actually has one of the largest impacts on making sure people show.
I can imagine that after fighting to escape a brazenly unfair, discriminatory, hateful, pre-trial detention, I wouldn't be inclined to go roll those dice again for trial. Well, I would because I'm rich and look upper class.