I was lingering around in court waiting for a small claims case related to my stepdaughter in a car accident. I present this not as a counterargument to your point, but an agreement. That to me, this exchange was so notable that it stood out in my mind because it should be the norm. It was at a hearing to revoke bond and other conditions of pre-trial release:
Prosecutor: waffles on about other details before... In addition, Mr Defendant has also done or said nothing that indicates him taking any responsibility for his actions in this matter...
Judge, interrupting: I'm going to stop you there. Mr Defendant has plead not guilty in this matter and has not been found guilty by a jury of his peers. In the eyes of this court, he has zero obligation at this point in time to "take responsibility" for his alleged actions, and the court will not be considering that in reviewing this order.