The American Dream is to accumulate wealth, and often involves looking for a way to get rich quick, some people think they can do it by day trading. There's a certain American stereotype of playing stocks to become wealthy.

There are cultures where they don't dream about accumulating wealth?

Less than the extent that Americans do? absolutely. In many ways they're obsessed with it. Look how much the gambling industry makes there.

Macau's gambling revenue dwarfs Las Vegas's. None of the top 10 biggest money making casinos are in the United States.