I dispute that most new technologies come about in that way. More often, government jumps on bandwagons that have already started in the private sector, if the government gets involved at all. And often, when the government goes first, there's a damned good reason the private sector avoided it.
The SST example is a good one. Back then, aircraft makers would only go ahead if it was a government program, because they knew the commercial case was deeply flawed. There was all sort of gnashing of teeth about money grubbing luddites in congress when funding was cut, but it turned out to have been the right thing to do.
Radical new technologies are generally based on scientific understanding that is the product of many decades of government-funded research.
Also many new technologies were first developed by the military, such as the internet, the jet engine, sonar, nuclear power, the computer, and space rockets.
Alas, the Republicans, who have an economic philosophy similar to yours, have been slashing government support of science, and so we can expect to fall behind the Chinese in it in the coming decades.
The SST example is a good one. Back then, aircraft makers would only go ahead if it was a government program, because they knew the commercial case was deeply flawed. There was all sort of gnashing of teeth about money grubbing luddites in congress when funding was cut, but it turned out to have been the right thing to do.