And your glorified advances in theory and science were...mostly financed with public money.
Just look at your smartphone. Try to find something that wasn't financed by the state (in this case the USA, that is, their taxpayers). And I don't mean the design but the most important parts: LCD, Touchscreen, the operating system (Unix came from...where?...Bell Labs), and all the many sensors.
Another neoliberal illusion is the "visionary entrepreneur".