Kongo Gumi, a Japanese temple building company that has been family owned for 14 centuries, had to close.  It was bad real estate investments that killed the beast.

BusinessWeek says:

To avoid a similar demise, evolve as business conditions require, but don’t get carried away with temporary enthusiasms and sacrifice financial stability for what looks like an opportunity.

In other words, “Greed, for lack of a better word, may not be good.“