I don't think "screw your neighbor" is how most people live. It does seem true that it is more prevalent in big cities. I live in Southwest Louisiana where that is not the default setting for the majority of people. Find a wallet? Give it to lost and found. Somebody drops money? Pick it up for them if you can get it easier than that person. That person will often give the person who picks it up a bit of the money. Buy a meal for a homeless person. Donate to causes in which you believe.