There is a moral responsibility as well for the commercial banks to develop financial services to suit the development needs of a country. Banking licences are not issued as a right, but are a privilege. Therefore, the commercial banks’ policies need to be aligned to the development needs of a country in which they operate.
Of course, tighter regulation means a considerable workload for banks and savings banks, as well as for supervisors. But it is also very important to weigh this against the cost to society of financial crises. Size is only one of several important criteria that determine whether an institution is “systemically important”.