The agreement between most governments and banks has roughly been “Okay, we will let you continue to make a healthy profit on the middle class, but in return you have to accept these unprofitable lower segment customers”.
This saves the government money by being able to do direct depositing of benefits instead of handing out cash at the Post Office, allows companies to adopt computerised payroll which makes tax easier to collect, and customers using cards in shops reduces tax evasion at retail.