Do you really believe it's the job of lawyers to argue in a...

Do you really believe it's the job of lawyers to argue in a court of law with respect to what they personally happen to believe is 'right' or 'wrong'?

Nonsense. It's the job of the parliament to make these sort of value judgments (through the enactment of legislation）

The only function of lawyers is to represent the interests of their clients by presenting evidence to the court and arguing points of law. That's all.