Cool, my question got answered!
Some of the best companies have had this because of influential founders. There are plenty of stories about Steve Jobs saying no to stupid ideas. I'd bet there are lots for Jeff Bezos too.
Microsoft kinda used to with Bill Gates--as long as it didn't go against some sacred products. Windows & Office trumped everything to the expense of being early but wrong to tablets. Not so much these days.
Watching everything Google has released or bought, then killed over the years, I don't think they have this either.