Mt. Gox died, yet Bitcoin didn't.

It occurred to me just now that Mt. Gox would have probably been classified by a government as "too big to fail" and been issued a bailout. Yet Mt. Gox was given no bailout, and they fell, along with everyone's money.

And... nothing really happened. Bitcoin still exists, the price didn't fluctuate too much, and life goes on.

It makes me wonder what would've happened if the banks weren't issued any bailouts. Would the world economy have been in serious trouble? Was it a good thing that the banks were bailed out? Or has it just delayed an inevitable "collapse day" that will occur at some point? Are collapses taken too seriously in general? Or was Mt. Gox, as large as it was, still incredibly small, and hence didn't matter that much?