Why are American tech-bros such loud-mouthed bullshitters ?

Reminds me of this disaster at Toyota,

https://www.wsj.com/business/autos/toyota-bet-technology-wov...

American tech is basically a sales machine. An ounce of tech will be coated with a ton of selling force. Everything in America is a business, presentation or a talk-show - including government, education, relationships. People do selling and faking to themselves sometimes.

[dead]