Fascinating that they're wise enough to gauge whether or not it would be a good idea to waste valuable soldiers! Usually the bad guys just go head straight with no thinking xD (I'm looking at you storm troopers!)
I have to agree with Sovember on his point though I have this nagging feeling that the Emperor is doing it because he's pragmatic not because he genuinely cares about their lives. It's more like a case of having to replace them and keep after them is too much work.
Thank you all for reading and all the great comments! I really appreciate. Have a nice weekend.