A misspelling of RVG.
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Nope: that is merely a side effect, and it does not apply to the vast majority of companies the world over (the S in SME). Companies exist because people figured out a safe mechanism to pool resources that doesn't involve babies, to deal with loans, assets and collateral. That's how they were invented, that's how they basically still operate to this day, and that is why the particular financial structure underpinning the company matters a great deal. So much so that we tend to require this to be part of their name (LLC, Inc.).
Hierarchy and its effects on productivity are... well things that management might like to tell itself, but not necessarily part of the deal at all.
For example many of the first companies in early modern history were just a bunch of merchants stumping up cash, outfitting a few ships and hiring a captain and crew to do the real work for them. The financial sector hasn't really evolved from that model since (stock market speculation is so 17th century, as is insurance against stock market speculation). Similarly, your typical SME outfit is not nearly as fixated on hierarchy as your average large enterprise (clue: titles), but despite that dominates enterprise in economic output.