In the modern world if you are a bank you will be bailed out eventually, thus your problem becoming everyone's problem.
Banks go bankrupt all the time. Community Bank and Trust of West Georgia went bankrupt just 3 days ago. The Metropolitan Capital Bank & Trust that went bankrupt back in January. 99% of the time the investors are completely wiped out. Bailouts almost never happen, which is precisely why it's such big news when it happens.
There’s also no moral hazard here - the shareholders, equity partners, and debt holders were correctly wiped out.