I tend to concur - EY is one of the big 4 accountancy firms. They work with and audit all the big corporations in every sector and advise governments too. Look what we have here on the ex CEO.
https://www.businesswire.com/news/home/20120116005868/en/Mark-Weinberger-elected-Global-Chairman-CEO-Ernst
"Mark was the Assistant Secretary of the U.S. Treasury (Tax Policy) under President George W. Bush and he was appointed to the U.S. Social Security Advisory Board by President Clinton."
https://taxgrotto.etaxjobs.com/2013/07/former-global-head-of-tax-at-ey-mark-weinberger-becomes-global-chairman-and-ceo/
I doubt you get to be at the top of such a big organisation without paying tribute to the cabal.