Another way of stating that is that all professions (aside from math-based ones) are inconsistent at some level of detail and have various workarounds for that.
Even accountants are paid to give "accounting opinions" about the various legalities and appropriate nature of the books. Looking across a bunch of domains, once you get people involved, around the edges of the problem domain accumulates a lot of fluff that for throughout history didn't matter. It still might not matter. Or maybe it does. We're the first to spot it.