The rich poor divide is increasing and the middle class is shrinking in the developed world. this is due to the taxation policies in the west and for singapore's case the rich are favoured and they are given labour control so the poor becoming poorer and the middle class shrinks even more.
Also the PAPs rent seeking behaviour makes thing worse, increasing the cost of living for a majority of the people, high rents, high property prices, high utility bills etc. This will continue on that is why the 'occupy' movement is trying to bring out. But with the 1% controlling the 99%, things can only get worse.