"Don't be evil" was dropped after the DoubleClick acquisition completed their internal takeover of the old "Don't be evil" Google (Google purportedly purchased DoubleClick, in reality they 'did' purchase them, but then the old DoubleClick advertisers slowly took over old Google from the inside out).

What is called "Google" today is actually the old, fully evil, advertising firm "DoubleClick" pretending to be "Google" to make use of the goodwill the "Google" brand name used to have attached to it.

Couldn't be more simplistic. Of course a three trillion dollar Google would behave differently than a 2008 Google with or without DoubleClick.

Even today, I would argue an average sample of Googlers will likely think slightly differently about these things than an average sample of Facebook employees; but of course both will have to respond to influence from the external world: i.e. customer, society, govt.