I think surnames are not necessarily the best way to measure what they claim to be measuring. There are many other possible explanations and correlations here. As social science this could be silly but it is also interesting reading or at least I thought so..

Your ancestors and your social mobility

Quote:
Inequality of income and wealth has risen in America since the 1970s, yet a large-scale research study recently found that social mobility hadn’t changed much during that time. How can that be?

The study, by researchers at Harvard and Berkeley, tells only part of the story. It may be true that mobility hasn’t slowed — but, more to the point, mobility has always been slow.

When you look across centuries, and at social status broadly measured — not just income and wealth, but also occupation, education and longevity — social mobility is much slower than many of us believe, or want to believe. This is true in Sweden, a social welfare state; England, where industrial capitalism was born; the United States, one of the most heterogeneous societies in history; and India, a fairly new democracy hobbled by the legacy of caste. Capitalism has not led to pervasive, rapid mobility. Nor have democratization, mass public education, the decline of nepotism, redistributive taxation, the emancipation of women, or even, as in China, socialist revolution..
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"When the snows fall and the white winds blow, the lone wolf dies but the pack survives."
Winter is Coming

Now this is the Law of the Jungle—as old and as true as the sky; And the wolf that shall keep it may prosper, but the wolf that shall break it must die.
As the creeper that girdles the tree-trunk, the Law runneth forward and back; For the strength of the Pack is the Wolf, and the strength of the Wolf is the Pack.