As an old timer, I saw this firsthand happen with Motorola. Apple did the same shenanigans, stealing IP and engineers. I doubt the iPhone would have happened otherwise.
Jobs was absolutely ruthless and would do anything for his goals.
Eh, I don't think Apple is particularly ethical or anything (I very much dislike their app store policies), but if you have to choose between two devils Apple is vastly preferable because they're not after my data or my job.