The bigger you get, and the more people you let in who have a different set of morals (or lack thereof), the more difficult it is to have a finely tuned and adaptable society. When you are one of the least corrupt socieites in the world, and you encourage people to come to our country from more corrupt societies and not integrate or adopt our morals, you are encouraging corruption. Just look at Minnesota.

Having said all this, I hope your are right, and I am wrong, that such a society is achievable. I've been getting a little pessimistic lately that the only way to have one is to reset society as one, and begin the inevitable gradual incremental change away from it. But, societal resets are painful. People usually die.