That prominent figures should feel shame when they do something wrong.

Not just a press conference where the person drags his wife up on stage to stand beside him while he reads a prepared speech saying how sorry he is, but true shame. Somehow, we've evolved an American culture where, say, a billionaire investment bank CEO can land with several million dollars in stock options after driving his firm into the ground with poor risk management, and instead of feeling ashamed he writes a book about it.

(This idea didn't originate from me. Economist Russell Roberts has put forth this idea several times on his podcast, Econtalk. I'm repeating his idea here, because I think he has a good point.)