New Zealand was also among countries with the highest percentage of labour costs paid in personal income tax.
The non-governmental organisation says it's "grappling with costs rising faster than income".
Collectively they spent almost a quarter of a billion dollars on contractors and consultants in 2022-23.
The public remains in the dark.
The Finance Minister is unfazed by the Destiny Church leader's criticism.
"I looked at it and I tried to figure out how the numbers could be so big."
"There is good evidence that it can benefit employers as well."
"It's a very fine line."