I HATE the gong!! I either only get more tech points, and I already have over 2 million, or the gong takes something away. It took health from a bunch of my villagers and I had to heal them all. Which wasn't so bad, since I had some Trainee Doctors. It was just time consuming. So far the gong hasn't been worth the work!!
That sounds good, especially if you're training villagers for Esteemed Elders. Plus, knowing medicine makes them live a bit longer.