This is a old saying in China, that heroes are not self-made, but no more than a product of context.
It’s more about luck and timing than being genius although it requires both to make success a reality.
It’s said in the article “The Parisian art scene had changed since Van Gogh was alive, in ways that were still unfolding when Picasso began his great experiment. First, there was a new kind of consumer: the industrial revolution had created a class of young, educated, affluent Parisians, who, keen to distinguish themselves from their more conventional elders, prided themselves on daring displays of taste.”
I’d say Picasso is very lucky, he’s genius, for sure, but he may also have simply met a need that no one knew was there, he wasn’t trying to help these people achieving their goals, but simply to create art that he found valuable.