I think the point is not that Singapore is a paragon of equality, but rather that its rulers have had the sense to provide adequate comfort for their subjects, rather than trying to take absolutely everything.

However, in spite of that, the PAP has done a very good job of ensuring there's just enough by way of public services and subsidies to keep enough people happy that the government continues to command the people's respect and the opposition will never quite have enough fuel to build a viable political movement.

...and it's still better in many ways than large parts of the US.