
Quoting
JustANobody
The prejudice resulting from the jury hearing that which is not relevant and contrary to the defendant's 6th amendment rights, is the jury panelists are paying for both sides and one might be a bit desensitized not to believe a panelist will harbor a natural bias against somebody that cannot afford counsel as opposed to a defendant that rolls in with a law firm everyone knows costs at least as much as a down payment on a home, if not a home.
I'm thinking years of outcomes reflect juries generally believe wealthy people are less likely to be guilty.