Exaggerated: All of his plots are references to any and all of these things. Oh, and did we mention his British accent?
Downplayed: He drives nice cars while listening to a classical piece of music, is maybe occasionally seen going to an opera, and has a nice house filled with real Monets, but these are not dwelt upon or referenced in any way out side of being window dressing.
Justified: These are his interests, regardless of whether he's good or evil.
Inverted: Evil Elliott is an uncultured, sloppy Neanderthal.
Evil Elliott likes classic literature and chess, but he's a big football fan too.
Double Subverted: But no one knows that except him and his Right-Hand Cat.
Parodied: Evil Elliott's dark fortress doubles as an opera house.
Zig Zagged: Sometimes Evil Elliott plays chess, other times he watches football.
Averted: Evil Elliott is never shown as having particularly erudite interests in-story.
The work has Anti-Intellectualism as one of its core themes, so presenting Elliott as cultured brings a few more shades of it in.
Elliott is an Anti-Villain and is going to be a rounded and constantly returning character, and making him cultured was bought in to make him more sympathetic and understandable, as well as letting the writers throw in a few Genius Bonuses here and there.
Lampshaded: "For someone so evil, you sure like ballet a lot."
Exploited: Superguy lures Evil Elliott to Trope City Art Museum for the final battle.
Defied: Evil Elliott doesn't want to be seen as unmanly, so he doesn't pursue any of these interests.
Deconstructed: The work criticizes the idea that have good taste makes Evil Elliott any less of a monster, and explores how his sensitivity in some areas makes him even worse than he would be otherwise.
Reconstructed: The work explores Evil Elliott's Freudian Excuse of a poor and miserable upbringing, and presents his cultured tastes as well as his villainy as attempts to overcome his past.
Played For Laughs:
The Five-Man Band (and, secretly, Evil Elliott's minions) find it amusing that he likes art and music.
Evil Elliott takes a few moments while fighting outside the Troperville Opera House to introduce the Five-Man Band to the opera playing inside - after all, don't they both deserve a break?