How create the rich earn their livings?

Here is an interesting paper that answers the question.  Some highlights from Table iii nigh the meridian 0.1 percent:

• 18 per centum are fiscal professionals.
• 42 percent are executives, managers, or supervisors inwards nonfinancial businesses. More than one-half of those are inwards closely-held (presumably often small) businesses.
• 7 percent are lawyers.
• 6 percent are inwards medicine.
• 3 per centum are inwards arts, media, or sports.
• Less than i per centum are professors or scientists.  :(

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