From Google Search onwards, I find/try the product, I like it, it evolves and improves (I presume after some A/B testing somewhere). e.g. gMail is 'web based email client', but was first I know of to let you tag, import from other accounts - and now has the tabs, unsubscribe buttons etc. When some changes (such as the tabs) first arrive, I feel a bit uncomfortable, but you get used to them.. then appreciate them.. and I build up a buffer of trust for the next change that might come.
G+ didn't spring into existence because of customer demand. It appeared because google decided google needed it. We didn't create accounts because they looked useful, they were created to try to get google's network running quickly. We had features pulled on other google products, to push us towards using the damn thing. e.g. I suspect removing latitude from maps wasn't a decision from the maps team to improve their product.
So, too, the difference between "don't be evil" and "be good."