This is failure of legal discipline actions has been well researched in 2009 by the NorCal Innocence Project. Most ethics and moral turpitude complaints end up as “harmless error.” https://www.abajournal.com/magazine/article/harmless_error_new_study_claims_prosecutorial_misconduct_rampant

This law prof says much the same. Public shaming won’t cut it.

Austin Sarat—Associate Provost and Associate Dean of the Faculty and William Nelson Cromwell Professor of Jurisprudence & Political Science at Amherst College—predicts that because the lawyer discipline process is broken, President Trump’s lawyers will get away with facilitating his anti-democratic misconduct. Professor Sarat notes that Lawyers Defending American Democracy (LDAD) released a letter calling on bar authorities to investigate and punish members of Trump’s post-election legal team, but he points out that while LDAD can shame those members, it still lacks the ability itself to discipline or disbar.
— Read on verdict.justia.com/2020/12/11/trumps-lawyers-will-get-away-with-facilitating-his-anti-democratic-antics-and-they-know-it