Its funny how its beloved by the "free market" types when it was just a welfare flight for those who thought themselves too self-important to fly a few more hours between major far-away cities.
113 people died in 2000. It wasn't exactly the safest plane out there either.
With teleconferencing and modern technology, the need for the business class to show up to far-away places should go down. But a lot of it is entitlement, that is to say, show up for a meeting then enjoy a free vacation while "working."
Everything about the Concorde was corrupt if not classist. It was a mistake even if the engineering was impressive. Imagine if that money would instead have gone to public transportation. We'd have the Chunnel in the 70s instead of the 90s.