The sandbox and review processes are completely separate from each other. Technically if the review process was flawless Apple wouldn't need a sandbox in iOS.

The sandbox and review processes are completely separate from each other. Technically if the review process was flawless Apple wouldn't need a sandbox in iOS. Yeah sure, things that attempt to break out of the sandbox will not be caught before ending up running on a users phone, but this also gives Apple somewhere to learn about novel sandbox escaping techniques from, so they can eventually patch them.