because comparing yourself to your competitors will get you a faster horse buggy, not an automobile. if you're in a startup, you should be risking making automobiles. if you want to make faster horse buggies, go work for AT&T.
Ah, the mythical secret weakness of all startups: another startup doing the same thing.
Good ideas need the right timing to line up. AT&T can afford to keep a research project around until the timing is right where a startup needs to find market fit immediately.