No one is suggesting that books don't contain knowledge, but now a days you can get support for the opposite point of a issue for just about any topic known to man. So for example if I work for a certain line of business (or my relatives do, or I am an investor in that ethically challenged business , then one tends to find books and "knowledge" that supports that ones bias.
Suggesting that everyone else just doesn't understand the business, unless they read one particular "knowledge bias" ............in itself is a internet bully type approach.
and implying that the Oil and gas refining companies are doing no wrong in these low oil resource price times is essentially closing ones eyes to the obvious. I tend to keep reading information from both sides of the equation and make up my mind from there .