I disagree about innocent people being wrongly punished every day. If one has ever sat on a jury for the entirety of a trial, it's pretty hard to conclude this at all. Is our court system run by perfect, omnipotent people? Nope. So there will always be some mistakes. But the standard for criminal prosecution is already "beyond a shadow of a doubt". And where both sides now have access to DNA evidence in many cases, establishing doubt is much more clean-cut than it has ever been.

Now if you want to argue that our criminal justice system has let down its blindfold to some degree, I will readily agree with that. Many high-profile prosecutions (OJ, Trayvon Martin, etc.) get politicized to an unreasonable degree which can taint the outcomes.