Which is great, unless your entire country is swallowed up by social and educational problems that enable a corrupt, fascist government, or if deforestation and despeciation continues at its current pace. The technological gains from rockets, solar panels, and electric cars won't matter then. Figure those things out, and then a trip to Mars won't look like a sci-fi futurist's vanity project.
Most of those things require a lot more than even a hundred-billionaire can fix.
Hell, even just “make successful electric car brand” is more than I was expecting when I first heard about Tesla, and even if they do as well as their current market cap implies, they’re still not going to solve climate change by themselves — and that’s one of several causes of the current mass extinction.