The whole 'tomato is a fruit actually' thing seems like a lie that got out of hand. No one has ever actually checked. We've just heard the whole seed explanation and thought 'Welp yep that sounds plausible' and now it's carved into our culture. Oh lettuce is actually a mineral. Cauliflower is an onion. Bananas shouldn't be consumed after midnight. It's madness.
@TheBreadmonkey concepts are an evolutionary thing. They are shaped by whats needed to handle the world at a specific time and thus evolveover time much as species do in biology. Its all #memetics to me