Based on what I have seen at construction sites in Asia and the US you are correct.
Most construction workers don't actually need to move all that much stuff so they tend towards regular vehicles or at most vans or small pickups. Raw material is delivered on semis. Every time I have known someone who owns a vehicle like that they could manage with a sedan. When I go out to a site my gear weights about as much as I do and it's with two techs in an economy car.
Best example was one place I was at had these fake union jobs. One guy's whole job was to babysit a machine. He drove one of those. Lazy mofo. Never packed lunch, wouldn't sweep up his "workspace", his entire day was on his phone.