You may want to read the link you cited. Also, Little India is not impoverished. It just looks so to a casual tourist. The fact is rent in Singapore is substantially driven by their accessibility to Little India.
It is one stop away from Dhoby Ghaut, the MRT station with the most connections to anywhere in the island, and three from Orchard, the one with arguably the highest commercial rents.
My point about it being relatively impoverished was that the majority of the Indian immigrant laborers live there. Relative to the average Sg citizen, they are living in poverty.
The lowest class by salary of any society lives, by definition, in poverty compared to the others.