I don't think the bullshitter problem is at all limited to the tech industry. In the financial industry there was Madoff, and not just him, but the surprising number of people who were ostensibly running their own funds who just put all the money into Madoff's hands and then took fees off the top. And having someone with a technical or engineering background at the top is no panacea against bullshit. IIRC, the top leadership of VW all started as engineers, but that didn't stop them from perpetrating the diesel fraud.