1. Contact info only limits to the email, which is of little use in China.
2. Returning the wallet is equalled to Civil honest by the author arbitrarily.
3. Passively returning the wallet is the way how Chinese perform honesty. They wait for the owner coming to them, instead of searching for the owner themselves.
4. If knowing little about China, stop using the unfair data judging China.
5. So-called Science is nothing but discrimination in this article.