Sonia Sotomayor actually said...

We cannot remedy the ills of society in a courtroom. We can only apply the law to the facts before us.

I think what Justice Roberts was saying is the Court needs to think about its processes to ensure that it's fulfilling its----

The doctrine of stare decisis is a doctrine that looks to the value in the stability, consistency, predictability of precedent.

To me, that's a core responsibility of lawyering.