[PeterisP]

Well no, for quite a few inventions, the first creation is a toy and the important inventions and actual progress are those that make it cheap enough.

The first cars didn't change the world. The first cheap cars did - Ford deserves more credit than Benz's Patentwagen.

The invention of lightbulbs at early 19th century wasn't a significant progress and didn't solve any significant problems - the cheap lightbulbs that came a generation later, involving Edison among others, did that.

Making stuff possible is just a tiny part of the total solution - making it cheap is what matters. If "solutions already exist" but aren't affordable, then those are not solutions - those are unsuccessful attempts at solving the real problem; and the world is still waiting for a proper solution of doing X in a way that scales efficiently and becomes affordable.