Creating the world's most successful company in your backyard, attracting high-value talent from all over the world, making Cupertino a household name...is "giving nothing back"?
Some of the people coming to Cupertino to work for Apple will buy houses in Cupertino, send their kids to school in Cupertino, spend the money they make in Cupertino, etc... Not to mention all of the extra jobs that need to be filled taking care of the buildings and the spoiled engineers, the hotel rooms for visiting emissaries and WWDC attendees, the construction jobs building those new houses and schools...
Edit: I don't want to sound like I'm saying "the town should be grateful for these scraps and nothing more", these are benefits to the town on top of the taxes that it pays.
That's a fair question. A massively successful technology company can locate itself just about anywhere it wants to. In fact, there are plenty of places that will offer very compelling incentives to a company like Apple to move into their locality. Why would they do that if it's of no benefit to the people? I guess you could argue that corrupt politicians will offer those incentives to secure bribes, etc., but here you have the mayor of Cupertino complaining.