Buffett says two billionaires ' pledge of fortune is inspiring act of us exceptionalism . And whether the money goes to cure river blindness in Africa or help finance charter schools in this country , it is something that reflects well upon the United States . But he says it points up gap between the `` super rich '' and `` working wealthy '' couples . These $ more than $ 150 million couples may be in John Avlon tax bracket , but struggle to stay in upper-middle class . Avlon : Working wealthy are n't suffering , but they pay high taxes , get few benefits .
Buffett says two billionaires ' pledge of fortune is inspiring act of us exceptionalism . But he says it points up gap between the `` super rich '' and `` working wealthy '' couples . These $ more than $ 150 million couples may be in John Avlon tax bracket , but struggle to stay in upper-middle class . Avlon : Working wealthy are n't suffering , but they pay high taxes , get few benefits .