Can't comment on the followup / extension idea, but Scott Alexander's Meditations on Moloch is an amazing, possibly life-changing piece of writing. It's long, so you'll probably need at least an hour of time in a single uninterrupted chunk - but in the end, it's absolutely worth it.
as surely as Fire will burn,
The Gods of the Copybook Headings
with terror and slaughter return
http://www.kiplingsociety.co.uk/poems_copybook.htm