Did what? The billionaires haven't even put a single person in orbit yet, something the government did within a few years of starting a space program. The US government went on to put humans on the moon (a feat yet to be equaled even by any other government, much less a billionaire), operate a reusable spacecraft for 30 years, and build an enormous space station in orbit and operate that for 20 years.
Free people do control government capital in a functioning democracy that has not been captured by billionaires.
Is a completely ridiculous thing to say. Governments explored every planet in the solar system and discovered thousands more in the galaxy, sent humans to the moon, and have kept humans in orbit continuously for 30 years. The US governement is about to send the first helicopter to Mars. Some of their contractors have been doing a good job of innovating lately too, great!
>Governments made basically no progress in outer space
Governments made ALL progress in space, ever. Space travel only exists at all because governments poured unbelievable amounts of money, resources, and people into researching and developing it over decades. These billionaires' efforts are starting on top of that. If they had to start from scratch it would be impossible. Government space programs petered out not because of a lack of "acument" or some other nonsense, but because public support for these programs ebbed as the impetus (the Cold War) went away.
You really couldn't think of a worse example that completely undercuts your point.
Billionaires are good at commercializing the work of others. But they're not creators.
Meanwhile people like Elon Musk are mostly interested in vanity and commercial projects. Sure, there are worse ways to spend your money as a billionaire than being a space tourist, but let's not pretend he's bringing much progress.
This is something no one else have been able to do up until recently. I would at least consider that as a notable progress.
Wow, I knew JFK was rich, but I didn't think he was that rich!
https://en.wikipedia.org/wiki/We_choose_to_go_to_the_Moon
EDIT: /s ... if it sonehow wasn't clear. Nonetheless, the fact remains that JFK is the only person whose vision has led us "to the stars", and it was the US government that achieved the vision he put out.
You let the billionaires have their money because letting free people control that much capital is far superior to the government.