"For profit organizations are not your friend" is usually true. It's not restricted to tech companies or silicon valley.
- ProPublica
- my local farm co-op
- REI
Just trying to say it's not a law. I do agree with your point though.
A more accurate worldview might be "Your friends are your friends. [1] Everyone else might be an ally, an enemy, a competitor, a customer, a business partner, an Internet acquaintance, a relative, a romantic partner, a dependent, a bedfellow, or most likely just someone you're indifferent to. Know who is which."
[1] Technically, a good portion of our friends aren't actually are friends either:
http://nymag.com/scienceofus/2016/05/half-of-your-friends-pr...