Not sure I agree that they should even wear 'above average' suits in their roles as GB members. They are supposed to be humble, discreet men and their clothing should reflect that. These guys dress like princes.
I've seen old photos of Fred Franz in the office at Bethel and he looked like he just walked in from yard work with his checkered shirt. One of the suits Fleegle wore recently looked like a crushed green velvet - tailor cut affair.
It's actually sickening if it's money from donations that pay for it. If it's their own money, they need to show some restraint.
But then again 'Judge' Rutherford dressed and acted like Daddy Warbucks, so there is a precedent for them to follow.