It is not unrelated, because it means that the lawmakers have to be more careful and take their jobs as legislators and writers of policy seriously, instead of merely yelling for a living.
In civil law jurisdictions, the law is what the legislator says it is, no more, no less. What you write is what the law is, period. Judges can take each others advice and try to apply it consistently, but they can't go beyond or against what's written.
In common law jurisdictions, the law is ancient and practically unknowable. Your laws can be struck down for being out of whack with some older precedent, or it can be re-interpreted to be something better or worse than it is. It is common in common law jurisdictions for legislators to poop out something vague and inconsistent and then rely on the courts and the regulators to turn it into actual policy.
In civil law jurisdictions, the law is what the legislator says it is, no more, no less. What you write is what the law is, period. Judges can take each others advice and try to apply it consistently, but they can't go beyond or against what's written.
In common law jurisdictions, the law is ancient and practically unknowable. Your laws can be struck down for being out of whack with some older precedent, or it can be re-interpreted to be something better or worse than it is. It is common in common law jurisdictions for legislators to poop out something vague and inconsistent and then rely on the courts and the regulators to turn it into actual policy.