It’s because whatever maniac invented the sizing scheme decided that every letter represents 2 inches more around your body at the weirdest boobage point than just below it. What a bonkers system! A woman with 38B bras is 38 inches around at the band, and 40 inches around at the girls. Nonsense. The way dudes THINK it works makes so much more sense.
Not joking. Obviously it’s unenforceable, but when you’re already ensconced in the larger organization and made the choice to join Sea Org, you’re really committed to Scientology and I’m sure the contract feels real. Makes it pretty hard to leave your cushy $10/day job scrubbing one of their cruise ships.