Yes and no according to this author:
Here's the argument that it does not:
In terms of immediate political stability, there is less to the income inequality issue than meets the eye. Most analyses of income inequality neglect two major points. First, the inequality of personal well-being is sharply down over the past hundred years and perhaps over the past twenty years as well. Bill Gates is much, much richer than I am, yet it is not obvious that he is much happier if, indeed, he is happier at all. I have access to penicillin, air travel, good cheap food, the Internet and virtually all of the technical innovations that Gates does. Like the vast majority of Americans, I have access to some important new pharmaceuticals, such as statins to protect against heart disease. To be sure, Gates receives the very best care from the world’s top doctors, but our health outcomes are in the same ballpark. I don’t have a private jet or take luxury vacations, and—I think it is fair to say—my house is much smaller than his. I can’t meet with the world’s elite on demand. Still, by broad historical standards, what I share with Bill Gates is far more significant than what I don’t share with him.
Compare these circumstances to those of 1911, a century ago. Even in the wealthier countries, the average person had little formal education, worked six days a week or more, often at hard physical labor, never took vacations, and could not access most of the world’s culture. The living standards of Carnegie and Rockefeller towered above those of typical Americans, not just in terms of money but also in terms of comfort.
Here's the argument that it does:
If we are looking for objectionable problems in the top 1 percent of income earners, much of it boils down to finance and activities related to financial markets. And to be sure, the high incomes in finance should give us all pause.
The first factor driving high returns is sometimes called by practitioners “going short on volatility.” Sometimes it is called “negative skewness.” In plain English, this means that some investors opt for a strategy of betting against big, unexpected moves in market prices. Most of the time investors will do well by this strategy, since big, unexpected moves are outliers by definition. Traders will earn above-average returns in good times. In bad times they won’t suffer fully when catastrophic returns come in, as sooner or later is bound to happen, because the downside of these bets is partly socialized onto the Treasury, the Federal Reserve and, of course, the taxpayers and the unemployed.
In short, the financial sector has increased its political power over the past decades and is using this to pursue policies that advantage them at the expense of financial stability. Their interests lie in taking advantage of instability.
It's worth a close read.
