The true "poor" people aren't allowed in to Souq Waqif. That's why the men pushing wheelbarrows around are usually wearing name tags hanging around their necks. This allows security to keep out poor beggars/laborers/unemployed.

You only need to walk a few blocks from Souq Waqif to the areas behind Al Fardan to find poor people.

And, strictly speaking, the guys sitting around next to trucks and on roundabouts are unemployed - that's why they are sitting there, they are waiting for someone to give them a job to do.