Not sure what makes you think of Indians in this way. Come out of your room and look around. There are lot of good people who tries to help others.When someone drops a wallet on a public place.
Indians : Oh I have found a wallet, I will keep the wallet with me. It's his fault that he dropped his wallet.
Japanese : Hey sir, you have dropped your wallet. All of your cash and cards are intact. Please come and collect it from XYZ location.
No offence to anyone. Just my two cents.