The market is off, sales are down, inventories are building, and the economy is getting hammered with layoffs. People are scared.
Business is a metaphor for life, and life is getting tough.
Difficult times are good times. When we suffer, we don't take things for granted, and we're thankful for what we have. When we are in fear of losing something, we realize everything we have and that we should be glad that we have it. Perhaps the pleasure of having found your wallet exceeded your distress at having lost it, and the natural effect was thankfulness. In a way, the thankfulness almost made the distress of the temporary loss worthwhile.