Knowing the law and upholding the law are not necessarily the same thing though.

Britains Labour party leader Keir Starmer is also a lawyer specialised in international human rights, yet he repeatedly claimed Israeli war crimes not to be war crimes.

Germany currently has a scandal, where the ministry of education tried to defund researchers who signed an open letter, defending students rights to protest. First of all this is highly unconstitutional and unethical, because the constitution grants both freedome of speech and freedom of science. Second of all, targeting dissident scientists is particularly icky in Germany, given the Nazi history. The executor of that ministers order, who was then sacrificed to take the whole blame for it, was the head of Germanys ethics advisor council to the government.