They won't be a market leader in everything. What do they lead aside from search, ads, and mobile OS?
The really funny bit is that near the end of Steve Jobs's life (per the biography), Larry Page asked him for advice and of course he said "focus on doing a few things really well, cut out everything else."
Leading in self-driving cars is debatable. They surely have the most visibility, but some car manufacturers and academic institutions like VisLab also have some impressive prototypes, e.g.: https://www.youtube.com/watch?v=xNcyuApIlFw (the autonomous car is the one in front)
But they make a line of laptops, a line of mobile devices, and some software. There's no iSpaceship or Apple Submarine(TM) yet -- if you told me Google had a sub bouncing around San Francisco Bay, I wouldn't even question it.
Apparently he did. In the same biography, Isaacson wrote that "asking for advice to run a company" was just a clever way for Larry to visit Jobs in peace, playing to his ego, so to speak, as Jobs still held a grudge against Android.
Google is a very different company from Apple anyway. At Apple, innovation runs top-down, from the likes of Jobs and Ive to Foxconn workers. At Google, innovation runs bottom-up.
The really funny bit is that near the end of Steve Jobs's life (per the biography), Larry Page asked him for advice and of course he said "focus on doing a few things really well, cut out everything else."
Seems Larry decided he knew better.