Sensible Catholics have for generations been ignoring the views on contraception held by reactionary old men in the Vatican, but alas, since it is the business of all religious doctrines to keep their votaries in a state of intellectual infancy (how else do they keep absurdities seeming credible?), insufficient numbers of Catholics have been able to be sensible.
If you're making all your money simply betting on interest rates, that's not a business. Flow is a business. On the outside, they look the same for a while. But when you dig into them, no, they weren't exactly the same.