He managed to direct people attention to the actions that Canopy Hawker Groups, etc. has been doing and the fact that they have been protected, etc.
He really shed a lot of light on the thick and thorny issues that hawkers face, and inadvertently let people know some of the reasons why hawker prices so high.
Not because hawker earns alot, because they operate on thin margins (some just break even or even lose money) but because of the greedy actions by Canopy Hawker Group, etc.
It took a public uproar for them to reply, and even then they did Not address the main issue which was raised but try to misled the direction of the public anger.
Bertha Henson also helped a lot, kudos for her for bringing attention on the hawker group behind it to the public.