The free market runs on firm failure, not just firm success.
To an outsider, the problem seems that the current establishment, posing as laissez-faire, has made an art of "privatizing the benefit, socializing the loss". With a bank, no one is risking the chaos of millions of people stripped out of their savings, roaming and ransacking. The prevention measures differ.
For example, Sweden nationalized a bank which nearly bankrupted, thus punishing the stakeholders by removing their profits. The USA just pays them more money. The message is clear: let's resume the financial bonfire, because risk pays.
At the end of the day who are more "libertarian", the socialists or the neo-liberals?