No, it means that Google maintains a non-evil identity. As a corporation they may do evil things with good intentions, as you mentioned, or even unknowingly, accidentally, out of ignorance or within other human limitations.
The point is that it's an existential judgment -- that they would seek to have the question "Is Google evil?" answered negatively in consideration of all things, not that they need to avoid any blame or transgression.
I think the "DBE" topic has been rehashed about 10^6 times more than necessary, so I think I'll just leave it at that.