Why have a jury system, when prosecutors are more powerful than judges jurys are dumb and innocence needs $$$$

Actually, I disagree. It depends on how good your lawyer is, not how much money they are being paid. There are just as many good public defenders as there are high paid attorneys. In fact, PDs tend to have much more court room experience, know and have the respect of the judges, and actually know how to persuade a jury. Money didn't save O.J. Simpson, fame did. And I have actually found, in talking to jurors after trial, that the jurors actually do care and listen to the evidence. Believe it or not, some even see it as their civic duty to serve jury duty. Yes, there are some who don't want to be there and will do anything possible to keep from sitting on the case, but that's usually not the case.