What everyone else said. All work tends to be derivative and/or experimental/accidental. Shoot, some solutions arise purely out of laziness at times.
Also, this is heresy, but did you ever conceive of just making stuff functionally practical?
For example, designing armor to be used, considering the environment in which it was developed or to be used. Whether a random feature actually helps its structural integrity or is just a decoration. Could you conceive of people mass producing it? Do the source parts exist in a form that makes it possible?
Like you would never make armor out of giant crystals blocks on a world where giant crystals don't exist. It would be more like bedazzled stuff. Or like if society at a time can't mass create huge metal parts with accurate mathematical design, you might just make shitty ring-type chainmail for the majority of soldiers. etc...