Most banks go bust because they have bad debts, they have bad NPI - Non Performing Assets. What if there is a bank whose only job is to keep your money safe and do not lend? Like many banks in switzerland. People even pay interest to such banks instead of getting paid an interest for their own money. Why should such a bank exist?
Most crony capitalist oligarchs use political influence to get loans and get write offs and bailout. In return these oligarchs pay some amount to the party and the policitian. It is idiotic to think that world works on merit. World is and has always worked on relationships, networking or favoratism. Meritocracy is the smoke screen built for the masses so that they can keep working like ants believing that hard work pays off. It never does. Mostly the networking, whom you know, leverages etc., decide the outcome of a person's existence.
The bottom of the pyramid, who are holding the pyramid, the mass which holds the castles of the elites on their shoulders dont have the financial education or knowledge of reality to save themselves from such oligarchs and banks. A bank which takes only deposits, do not engages in credit, loans, lending etc., but may be optionally invest 1/3rd of its liquidity in ETFs of gold, silver and top 5 mutual funds with consistant CAGR for 10 yr SMMA. So the bank has enough profit to maintain its functions. so it is a non profit bank which is there only to serve people.