Question 2: I did not mean to distinguish having an individual client from working for an employer, but you are right, that implication does follow.

Question 3: I don't think that complex philosophical positions on justice necessarily affect my potential relationship with a client who seeks justice. I certainly have a normative sense of justice. For instance, the Israeli response to petty rocket launches strikes me as unjust, but I believe moral statements such as this are not actual propositions (i.e. they do not contain truth values). The expression then is akin to saying "go jets" or "boo giants." While this non-cognitivist perspective makes certain discussions difficult, it has little effect on how I live.