Looks like a pile of sh*te to me! Everyone to there own. Surely it would cost more to clean up than what it's worth.
I can completely understand your views, and obviously you’re not really a vintage and classic bike enthusiast.
However for me personally there is a real pleasure in giving a bike like this a second chance, taking time and care to carefully restore and preserve these lovely, well engineered bikes so they last another 60 years.
I’ve done loads where I’ve made absolutely no profit, but for me the satisfaction of bringing them back from the dead is worth it. I completely understand people not getting it, but life is not always about profit or money.