Her argument is that scientists make technology too difficult for common people. And that in the US, the technology was made simpler and easy to use, so the inventors could patent and sell it easily. The argument seems very convincing and it could have worked like that for a couple of decades. However, in a long run, the US schools introduced "European" science programmes and brought loads of German, Russian etc. scientists, 'cause you cannot just dela witth the second industrial revolution knowing only the basic laws of mechanics. And that's the question she compeltely avoids.