Why Wall Street is rising when Main Street is burning?

The last few days have seen unrest spreading to several U.S. cities in the aftermath of the killing of an unarmed African American by a white police officer but still the markets are rising. On the other hand Wall Street is going only north wards. The investors are betting on the revival of the economy and hardly have time for news of social unrest.

S&P 500 Index
S&P 500