Our castoff mountain bikes and gravel grinders would be life-changers for many of the world's poorest billion people.
I absolutely agree and, though I no longer do it for health reasons, I have helped send 7000+ decent mountain bikes to Africa. Each bike helps several people. I have no idea how many we have helped but I feel good for being a part of the effort.
As for the wasteful society thing. I could not agree more. We are a foolish species and ever ready to take our foolishness to the next level. Pooey-stinko!
Oh, I forgot to mention. The Simplex front derailleur, on the Peugeot I found today, is
NOT broken. Yahoo. Though not a Prestige model, it will, none the less, work and look just fine on my confused Carlton, assuming that I ever get around to building it...