Don't you mean, "we are for profit companies and we wont just sit here and make nothing no matter how badly we screw up, because we're too big to fail"
Every bank that was going to fail was bought out by another bank that wasn’t going to fail. Citigroup might be the only exception. Bank of America was asked to buy assets to prevent them from failing. JP Morgan and Wells Fargo scooped up assets on the cheap because they were failing.