Most of the general, watered down tone of Corporate America that we love to hate comes from the legal department, usually at the late-stage point when they make all the decisions in a company: product, business, launches, strategy, direction, etc. Everything needs to run through legal, and they have a final say on everything, including every public communication.
That's why I'd love an interview with Steam's legal head. Sounds like they'd have some wild stories to share.