Plenty of ways. Google maps provides accurate maps and route planning pretty much worldwide and for no (monetary) cost. I remember the days before when you had to pay Garmin £60 for up to date maps.

Chrome, while heading the way of ie6 in it's dominance is a massive public benefit.

Search - given that it's free of charge, it is a hugely valuable tool and has changed the world in the last 20 years.

I think you can argue that they don't provide this altruisticly, but it's definitely been a positive impact