That's a very sensible concern but I think if you've worked in the field in the SFBA for a reasonable amount of time in the last 20 or more odd years, you've almost certainly heard variants of same stories and themes, sometimes from first hand participants.
Even when you allow for the indisputable fact that, say, Herzfeld or Cringley or Isaacson and others are fallible human beings with imperfect recollection and intrinsic biases, the lockstep consistency of the narratives and characterizations is striking.
