You have to look at the big picture.
Consider that people shopping for a vehicle at a Ford dealer will often purchase the F150 rather than one of Ford's rather poor sedans, coupes, or SUVs. That's how you end up with the F150 often being the "best selling vehicle in the U.S." No one thinks that all those buyers are contractors; those F150s are the daily commute vehicle for most of the buyers.
People shopping for a vehicle at a Toyota dealer have a selection of excellent cars, trucks, and SUVs. Few Toyota buyers are going to choose a large pickup truck, with its rather poor MPG, as a passenger vehicle for daily use. That's why Tundra buyers tend to be people that are using their trucks for real work, not weekend warriors hauling bags of potting soil home from Lowe's or Home Depot.
The market for personal vehicles is much larger than the market for real work trucks, that's why the F150 sells well.