Well I think he has tried his best. The British (who are a polite, reasonable and intellectual people) before him tried too to tame the barbarians, but with very limited success.
With some exceptions (I should believe you are included), most Singaporeanese I notice on the streets (as well as in other social settings), are rude (very much so), critical (on others rather than themselves), cynical and barbaric people .....
With hindsight I can see that LKY is an oppurtunist. All the so called speeches he's made in the past were self serving. Now that he's had time to consolidate his power we see the abuses that comes with absolute power
Its not surprising that many 'older' Sporeans have become so cynical. They know what is going on in Spore. Many have lost their faith in the PAPs. What you see on the streets are the 'newer' Sporeans created by the PAP system. Must give full credit to LKY for that.
You have many foreigner admiring the efficiency, cleanliness, etc. Spore is a 'fine' city to visit, but obviously not a place you would want to settle & call home.