Earlier quoted context omitted.
The only reason we have a shot at affordable commercial spaceflight, as well as an eventual affordable journey to Mars, is because of that vanity project. If it was left up to the public sector alone, I don't think we'll be able to go to Mars in 20 or 30 years. But this hasn't really changed. Even in NASA's hey day space missions weren't government-only projects - The space capsules and Saturn V were built by contrac…
They are engineering projects, rather than something that discovers something new, per se. Even so, extending our capability to explore space allow us to do more scientific research, rather than less of it. With the advent of electric vechicle, the money that went to buying gas and doing maintenance can be better spent on something else.
I've often wondered why big corporations, as marketing, don't finance something like launching another Hubble space telescope. The corporate logo would go on the side, the corporation could host a conference to collect and analyze the results, it would be fantastic PR (instead of those silly commercials and celebrity endorsements they spend so much money on).