so what?
the publicity stunt was him trying to "understand the hardships"
of the common man..
if he was sincere, he'd take a $2,000 paycheque for a couple of
months, live in a HDB flat with his family and go to work each day
(his family included) in real public transport like the buses and
trains without all his goddamned security goons shadowing
him...
HDB flats are "affordable" because a $500,000 HDB flat is just
only 3 months of his $2 million dollar annual salary.
And he probably wonders why some people need 30 years to pay off
a HDB mortgage loan. 
