No, you're conflating two different things. The Wright brothers are credited for inventing the airplane based on their first powered flight, even though this p

No, you're conflating two different things. The Wright brothers are credited for inventing the airplane based on their first powered flight, even though this plane was in no way commercially viable or even useful. It was only a proof of concept. Applying the same principle to light bulbs, you'd have to credit someone earlier than Edison. They had working, functional light bulbs, they were just niche.