Even more than a supersonic jet, Concorde was a successful attempt to create a homegrown European airspace industry. The aircraft itself was a pioneer in fly-by-wire technologies, which Airbus (the current name of the consortium that build Concorde) later commercialized, also at an initial loss. In this way, the entire business was kickstarted by the governments of Britain and France.

The net result was a company that now outsells Boeing, especially in light of the latter's quality issues. Even though Concorde never made money (and never really could make money w/ the supersonic restrictions it had), I think it was still a win for the companies and countries involved.