I don't know how Angels ever got their reputation as gentle souls. A brief reading of religious scripture tells a very different story. Angels are Heaven's soldiers.
If told to destroy an individual a village or whole nation they do it. The do it without question. That's their function that's what they were created to do.
If they received orders to the destroy the Earth by slowly torturing of it's living beings to death they'd do it without remorse.
They'd do it with joy.
"Joy" because they'd be doing God's will.
This being so why do we love them so? Heck why do I love them?! Why do so many worship their creator?
People are interesting. We'll believe in anything.