Wha does "percentage of cases" mean?
Degrees and credentials are emaningless. Most criminal defense aorneys, private of public, come from lesser schools or come out of top tier schools with crap grades. Something about that maverick personality that a criminal defense attorney should carry, comes out in education.
I exclude elite white colar crim law firms from this. But what they practice is more akin to corporate law.
but we digress. I return to my point, however, the flagship example you chose does not prove that which you hoped it would. In fact the existence of a private tier may improve the provision of publicly funded services to the indigent. I would posit same is true in American hospitals, where indigents benefit from subsidies paid by insured and/or wealthy clients.
Heck I would argue Canada benefits from the fact that Americans pay the prices they pay - but that's another story.