Re: "did anyone think that information was going to treated well and respected?"
I think you might no understand how Uber works... They only possess -your- data and the addresses you enter into it, or just manually place the pin for pickup location and they don;t get an address at all. You could even put the destination beyond where you are going and have them drop you off early, or just put a completely wrong destination in and tell the driver where you want to go.
I have no idea how they would get names of people that aren't using the service since the app doesn't have access to your address book or email. Even if you refer someone to the service, you give them the code for them to enter it in when they create an account, so they only find out about them when they sign up. They don't even need to know your name, they'll accept pre-paid credit cards so long as it has a balance greater than 1.5x the estimated fare (Or some other multiplier, its been a while since I spoke to my cousin, who worked on their billing systems).
You could actually use one of those Visa gift cards and a cheap smart-phone on a pay-as-you-go plan, pay for it in cash, and Uber wouldn't have anyway of identifying you. Especially if you have them pick you up and drop you off some distance from where you currently are / are going.
They may do terrible things, but possessing a database of people that aren't users of the service isn't one of them.