This is where they may just outsmart themselves.
Where Holland-Bukit Timah is known for having relatively affluent voters, these same voters are also usually more liberal and open-minded than the typical hypocritical heartlander uncle or aunty you find elsewhere.
This can be a bit trickier than most perceive. Holland-bukit timah GRC is the 'bible belt' of singapore. Vivian, silly as his name sounds, is not daft to this fact. Not only affluent and well educated, the residents are also one of the most conservative church-going segments of the country.