It is ALWAYS a mistake to compare the actions of this man against an absolute. We all know that what he did can hardly constitute a "sin" in absolute terms. If he was someone else we would be jealous and wondering who can afford to buy all that. Regardless if it is for personal use or for a party.
When you have the leader of a large "religion", who has the power to make tons of people miserable for having done the same thing he is doing, then it becomes a sin by extension.
He may be the leader of a corporation on paper, but for millions of JWs he is a God's channel on earth and people beat themselves on the chest when they fail to meet his expectations, sorry, God's expectations. I see no need to cut him no slack.
He was suspiciously dressed, alone and more than half hour away from Warwick when most other purchasing would be carried out by his minions. I am speculating in the following point but I have a feeling that even the car he took was chosen with the intention of maintaining a low profile. I am almost positive this guy hardly drives anywhere without a driver.
Had he seen someone else act this conspicuously he would have had a talk saying...
... if it walks like a duck and poops like a duck... guess what?