Lets take Maps as an example.
Others did Maps. They all did it awfully.
Google came in with a piece of software that was revolutionary in it's day. People literally were amazed by it. It was fast and slick and brilliant.
They then extended it, brilliantly, with street level views. People were gobsmacked AGAIN.
That was nothing to do with search engine prowess and screwing over their competitors. Nothing.
They were just much, much better.
Or do you disagree with that?