It blows up the economy.
Consider this from Asia Times:
Then there’s income. In 2010, the average middle-class family took home US$49,445, a drop of $3,719 or 7%, in yearly earnings from 10 years earlier. In other words, that family now earns the same amount as in 1996. After peaking in 1999, middle-class income dwindled through the early years of the George W Bush presidency, climbing briefly during the housing boom, then nosediving in its aftermath.
In this lost decade, according to economist Jared Bernstein, poor families watched their income shrivel by 12%, falling from $13,538 to $11,904. Even families in the 90th percentile of earners suffered a 1% percent hit, dropping on average from $141,032 to $138,923. Only among the staggeringly wealthy was this not a lost decade: the top 1% of earners enjoyed 65% of all income growth in America for much of the decade, one hell of a run, only briefly interrupted by the financial meltdown of 2008 and now, by the look of things, back on track.
The swelling ranks of the American poor tell an even more dismal story. In September, the Census Bureau rolled out its latest snapshot of poverty in the United States, counting more than 46 million men, women, and children among this country’s poor. In other words, 15.1% of all Americans are now living in officially defined poverty, the most since 1993. (Last year, the poverty line for a family of four was set at $22,113; for a single working-age person, $11,334.) Unlike in the lost decade, the poverty rate decreased for much of the 1990s, and in 2000 was at about 11%.