Not everyone does that, you should be proud of what you do. What you say makes sense. As players, we often don't appreciate all the work that goes into a design, whether it's a boss or an enemy, and we focus on the game mechanics or how difficult an enemy is, but the conceptual, artistic, and coherent art that a design should have is not appreciated :) Good luck.
RE: Designing for a game for the first time! Demicore