It's a good point and probably true for most "geniuses", but I would also argue that Inspirational stories and cultural narratives matter, especially to young talented thinkers who face challenging circumstances/criticism. Sure, this may only matter on the margins, but in a modern science that is increasingly a crapshoot in terms of individual success, we want scientists who have confidence in themselves to think individually. Working in a team is not the same as working by yourself, they lead to distinct forms of thinking/working that have their own strengths/weaknesses. Science requires more teamwork than ever, that's necessary and a good thing, but that doesn't mean there are costs.