Exactly how do you pay to run a live, always on, constantly updating mapping service? Boosting revenue doesn't mean Maps is profitable. For all we know, Apple Maps is a money losing business for Apple but was necessary to move away from Google demanding Apple to integrate Google Buzz (remember that?) into the OS.
All you're really rooting for is "let's not have a competitor to Google Maps". Terrible take.
Well usually you leverage something else. Apple use and contribute to data in OSM, which is here, and free https://www.openstreetmap.org/
I'm an OSM contributor as well. There are thousands of us all over the world.