Ohhh, interesting how you get all protective about Diego, I like that. I'm sure Sablo would love to roast some high up butts, but he may regret it if both the A's get angry with him.
You'll learn more about the special missions, but yes, those poor kids had a very high risk of death or mental trauma, which was exactly why Diego became their Guardian Angel. His presence and the comfort he gave, made a huge difference.
No Big Guy, but there are some Higher Powers. But you're right about them being remote.