It's more a demonstration that their house was always built on other people's largesse, and at the whim of those who hold the real power in the system (the money to invest) their opportunities can evaporate. A bank run doesn't happen without individuals deciding to go bearish and concluding that their own big-money dreams are really worth more than whether strangers they haven't met get a paycheck tomorrow. Something we've seen a lot of as of late it seems.

Maybe building an entire society on a drastically slanted gap between the wealthiest and the least wealthy is actually super unstable and prone to failure?