India, April 26 -- A video that highlights the huge wealth gap that exists in Hong Kong, one of the world's richest cities, has been going viral online. The video shows domestic workers congregating on Hong Kong's bridges and underpasses on their weekly day off. For privacy, they set up cardboard boxes whose flimsy walls provide a modicum of shelter in the bustling metropolitan.

A video of the cardboard 'houses' was shared on Instagram by an influencer who noted how Hong Kong real estate has priced out its backbone - the domestic workers who keep the city running.

The influencer, named Rapha, explained that Hong Kong has a 'live-in' rule which mandates that foreign domestic helpers must live in their employer's residence. Because of thi...