Janteloven my good man.
Never heard of it. Very interesting. Set your bar low and you will generally be happy with what you get. Makes sense.
Only thing to note with regard to the happiness rankings Parklife referred to is that Finland, Denmark, Norway and Iceland make up the top 4 places for happiness among foreign born population. Taking Norway as an example, the majority of those people come from outside of Scandinavia. Would you be suggesting they adopt this principle as soon as they set foot on the soil?