These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Crowning Moment of Heartwarming: The last few pages, where we see 1 and 2 adopted by a homeless man, looking perfectly content and happy. Dr. Trendle sees them and hands the guy several hundred dollars.
1 and 2's conversation at the end of part three, where 2 shows it's newfound respect for 1.