"Corporate culture" is a culture of bland, and empty niceties, with a veneer of politeness and it's 100% needed so that a large corporation can focus on getting things done without every interaction turning into twitter.

Hacker news also requires a certain amount of politeness in the way you speak and it's one of the many reasons the discourse is better than twitter.

What makes you think our discourse is better? We have plenty of low-quality comments (see this one for an example) and nearly every thread goes off-topic (like what we're discussing now).