Words are useful only to the extent they help us to distinguish certain things from other things. When somebody writes a piece like this he/she should be circumspect about exaggeration, which only weakens the argument proferred.
Applying the notion of "mafia" to the high audio industry is ludicrous on its face. Exaggerated or inaccurate terminology is ill-advised in a thought piece like this.
Here is the American Heritage Dictionary definition of "mafia":
Ma·fi·a (mäfē-ə)
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n.
1.
a. A secret criminal organization operating mainly in Sicily since the early 1800s and known for its intimidation of and retribution against law enforcement officials and witnesses.
b. A secret criminal organization operating mainly in the United States and Italy and engaged in illegal activities such as gambling, drug-dealing, protection, and prostitution.
2. Any of various similar criminal organizations, especially when dominated by members of the same nationality.
3. often
mafia Informal A tightly knit group of trusted associates, as of a political leader:
"[He] is one of the personal mafia that [the chancellor] brought with him to Bonn"(Christian Science Monitor).