Actually, I think the 'don't be evil' injunction is meant to apply to the human employees. I'm sorry to disappoint you but I doubt that its actually written into any of their algorithms ;)
Their algorithms fairly evidently do all kinds of non-nasty things, including separating out ads before presenting them to the user, being fair to different sites - and so on.
Of course, it is Google that does the preference satisfaction, not just some algorithms - though obviously, the algorithms are important.
According to Eliezer, making AI safe requires solving two problems:
1) Formalize a utility function whose fulfillment would constitute "good" to us. CEV is intended as a step toward that.
2) Invent a way to code an AI so that it's mathematically guaranteed not to change its goals after many cycles of self-improvement, negotiations etc. TDT is intended as a step toward that.
It is obvious to me that (2) must be solved, but I'm not sure about (1). The problem in (1) is that we're asked to formalize a whole lot of things that don't look like they should be necessary. If the AI is tasked with building a faster and more efficient airplane, does it really need to understand that humans don't like to be bored?
To put the question sharply, which of the following looks easier to formalize:
a) Please output a proof of the Riemann hypothesis, and please don't get out of your box along the way.
b) Please do whatever the CEV of humanity wants.
Note that I'm not asking if (a) is easy in absolute terms, only if it's easier than (b). If you disagree that (a) looks easier than (b), why?