Actually, they did. He totally made up the Judge part to make himself look more imposing.
YOU would question King Solomon's wisdom on a legal point? WHY, I OUTTA CUT YOU IN HALF, LIKE AN INFANT! MARTHA! WHERE'S MY SWORD?!? :)
According to the Wikipedia bibliography:
Rutherford spent two years as a judge's intern, became an official court reporter at age 20, and was admitted to the Missouri bar in May 1892 at age 22. [ 23 ] He became a trial lawyer for a law firm [ 24 ] and later served for four years in Boonville as a public prosecutor. He campaigned briefly for Democratic presidential candidate William Jennings Bryan. [ 25 ] He was appointed as a Special Judge in the Eighth Judicial Circuit Court of Missouri, [ 23 ] [ 26 ] [ 27 ] [ 28 ] sitting as a substitute judge at least once when a regular judge was unable to hold court. [ 22 ] As a result of this appointment he became known by the sobriquet "Judge" Rutherford.
Hmmm, so sitting "at least one time" for a case no doubt involving a farm boundary qualifies him to be called a "Judge". And if "at least two survive" qualifies JWs to claim protection of the "group".
Legalese, at it's best.....