That's exactly my point, because for example if the US banking system collapses, it would mean the end of the US dollar based economy, so... certain companies can't fail, so democrats and republicans spend tons of money to keep the US powerful and relevant.
And the choice is reasonable, left to its own devices the free markets would have shifted power away from the US thus free markets would have failed the US.
The key is to regulate the minimum amount that will keep them honest yet not preventing innovation.
Because if friedmanomics are to be feared that's nothing compared to the powers that would raise if the US fall.
This would be unlikely, if ANY company were allowed to fail catastrophically.