If leave the fact that nothing is forever, Singapore is in fact a good example of a country where a dictatorship has worked just fine. Unfortunately, the word "dictatorship" is often perceived as a negative, but in the case of Singapore, it's actually a benign dictatorship. If you behave, you've got nothing to worry about. In fact, I was quite happy there for 5 years.

If everything seems under control, you're just not going fast enough...