The idea is that no one group or person can gain ultimate power. Yes, it is inefficient. Yes, it is very costly. But the most efficient and economical form of government is a dictatorship. And a corporate oligopoly is a dictatorship.
Lawyers are the attack dogs of our adversarial system.
At present the insurance industry, the wealthiest in the nation, has become so powerful that it virtually owns most state legislatures. Most state departments of insurance have become rubber stamps which do a little public PR now and then to cover their anti- consumer and unhelpful attitude. The few good DOIs are being hamstrung by laws and prohibitions passed by insurer-friendly legislators, such as Senator Bruno from New York. When one group becomes so powerful that it can control the law, it has to be cut down to size or democracy is in danger. Lawyers naturally gravitate towards the powerful and attack them.