Each evangelist can recruit and license a number of vendors, depending on how many EVAN tokens he holds in his wallet. Every EVAN token used represents income to the evangelist in two ways: we will pay 1 ROKS for every EVAN token used to install the MainSale app. The other income source is a large portion of the transaction fee for every ETH payment, 70% of the 1% transaction fee, or 0.7% of every payment amount. The payment smart contract automatically pays the evangelist this 0.7% for every transaction. With these types of benefits, if you are a vendor or retailer then definitely you get profit.