Don't forget the difference between corporate and domestic
The same can be said for the name brand "big boys" if you start buying outside their corporate line. I don't run screaming when I see a whitebox, and when I spec one it is with corporate level parts. Case in point I still have a dual core Opteron 939 server I built around 2006 and it's running great.
Now why you would want to spec a whitebox might be personal preference or control over design. If the reason is to save a buck, cost can cut you with name brand or whitebox. You get what you pay for.
As far as software piracy goes I've seen a ton of it OEM on those corporate name brands, especially WinXP professional.
While this article is a interesting anecdote it sounds as if your conclusions are biased.