A dude in Thailand that makes a free "Angry Birds Cheats" app does not have a lot to lose. In fact he could probably get away with putting something up on the app store with a stolen identity. The app could suck down millions of people's address books with real names, real birthdays, real phone numbers, real addresses, a network graph, and maybe more completely silently. You know the network activity indicator doesn't even activate unless it's flipped on and off programmatically? Best case scenario Apple finds out, takes the app down, and tells the Thai police to go find the guy? Good luck with that. Worst case scenario nobody even notices and the app disappears after sinking off the charts.
There is zero consumer protection against the latter and quite frankly the former shouldn't be an issue to begin with either. Facebook was getting away with it without getting caught. How many of those other high throughput apps that aren't from Facebook receive the same scrutiny from the public and researchers?