The Jehovah's Witness/Watchtower Society is a cult.
Now that you all know my opinion of the organization, the Watchtower Society did nothing wrong ot underhanded in buying and using an airplane in Alaska.
Many people who live there own private airplanes to commute to and from their jobs because their isolated towns and villages are too far from the oilfields for them to drive back and forth.
Also, Alaska has the largest land area of any state with very poor roads and extremly bad weather conditions 6-8 months out of the year.
Flying is the only reliable means of transportation.
As for the fancy cars...
http://upload.wikimedia.org/wikipedia/commons/0/01/Judge_Rutherford_Cadillac.jpg