Social issues: There are various issues that come up when talking about the social issues that come with banking. One example of a serious social issue that a bank has faced is with charging bank fees to deceased people. Meaning they were just getting money from accounts that weren't being interacted with by charging fees on them. This is obviously wrong, the money in that account should have been moved to relatives or sent somewhere else and the account should have been terminated as soon as the account holder died. The social issue here is that they chose profits over respecting a dead persons assets and keeping it for themselves instead of giving it to where it belongs.
Ethical issues: Some ethical issues that are derived from the bank and the way they operate can be from the very sensitive information they hold and the money/assets which lie within their systems. The ethical issue comes from the fact that they control all these assets and the fact that one mistake, evil person or malfunction could result in all that precious information and assets being breached and vulnerable. This means they can easily take money from accounts or destroy or leak peoples information and assets if they decided to. Obviously they wouldn't do this, but it is the power that they have to do it which is the problem.