indeed one of the biggest income banks is from interest but much more bank income apart from interest such as insurance policy, administration fee every month, from auction market, home and vehicle loan financing and many more.
I agree with his statement. I think they are making use of loans and from auction market for them to have a budget that is they are using to pay their employees.
bank could live from monthly fee their customer.without this fee they have no big income source.usually bank performance valued by this and loans.two of them main income for bank.