They are the reason these companies exist. When it comes to the creation of large for-profit technology companies, they decide what comes about and what doesn't. The blame is on them.

They also fit startup logic in a peculiarly perverted way: try all the nasty stuff compartmentalized into a low stakes stealth mode start up, then become an acquisition target once you've got the perverted PMF of having a benign looking product that hides the evil within. Clean hands for the acquirer.