At the core of Bitshares there is a FOREX of Smartcoins, and that is a payment service, in its own right. So somebody can do payments easily (if the peg was 1:1, and volume) of EUR to CNY at a fraction of a cost of what is now, without the risks that entitles the volatility of Bitcoin. So Businesses who trade globally can save millions. If Gateways of FIAT like Yunbi and CCDEK could take advantage of this by working together, who is their competitor? Transferwise.
So I agree the core of Bitshares is the exchange, but as mentioned before we cannot say we are not in the payment service business, we are its infrastructure. If not IDentabit will be then