In the case of Singapore vs. London (implicitly including the governing structure of Britain since London isn't a city state)? A few I can think of straight away:

Democratic decision making. Therapeutic rather than punitive law enforcement. Lenient punishment of crime. Absence of censorship.

Naturally all of these aren't fully realized in London either. Britian dosen't have real free speech, yet it has much more of it than Singapore. Britain has (in my opinion) silly and draconian anti-drug laws, but it dosen't execute people for smuggling drugs. London ... (read more)