They don't need to become inhuman machines, they just need to understand that their words have effects beyond the obvious.

You might not want to joke about blowing up the plane while you're standing in line at the X-ray machine, and you might not want to joke about conspiracy theories (or stock prices, or buyout offers, or pedophilia, or Kanye's presidential campaign, or...) when you have reason to believe that people will take you seriously. If recent history has taught us anything, it's that large numbers of motivated morons are nothing to fuck around with.