Re: 3 Words - Don't be Evil?
That motto was officially dropped when Alphabet became the official parent of Google in 2015:
However, per the linked article they did replace it with a "positive" formulation for their code of conduct:
“Employees of Alphabet and its subsidiaries and controlled affiliates should do the right thing—follow the law, act honorably, and treat each other with respect,” the new code reads, noticeably dropping the famous motto.
Maybe a few things not covered leave some scope creep for "evil" such as being sneaky and obfuscating how user data are monetized, licensed, and shared?