Right. At Google's scale, it will even benefit them a lot if other broadband providers provide a better service, since it promotes more use of the internet, and thus more ad income for Google.
I guess people said the same thing when pictures were first being used on the net.
I'd say that it was still a net benefit not to be text only, wouldn't you agree? Ads can be annoying, but they also pay for a lot of what we're using online every day.