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.
YMMV: The Groovenians
Anvilicious: And how! Basically, what it boils down to is "being a creative person is great, as long as you only do it for art's sake, because making money is for boring greedy people!"
Rooting for the Empire: King Norman, while his song is just as abhorrent as the other, is usually the character people want to win, for two reasones, he makes a point, and our protagonists are annoying.
Strawman Has a Point: King Norman's song is about how everything has consequences and people shouldn't be expected to have fun all the time without paying for it. This has the unintentional effect of making him the most sensible and practical character in the cartoon. He also unintentionally points out that in the real world, Jet and Glindy would be considered welfare dependents at best.