Off topic, but what the hell... your suggestion doesn't improve my view/opinion of "lawyers".
Well, you see, there's a third party in a judgement who is (at least, who should be) impartial and that's the one who decide who's right. That's why the lawyers can do (almost) anything to win the argument (we have limits, at least here in Italy), especially when the whole things just revolves around words and their interpretation! ;D