None of them do nothing but commute. Many may commute a lot, but that’s irrelevant. Truck owners like to have trucks because of how useful they are when you
do need them. It doesn’t really matter how often that is. They see no downside to having it for those times you need it, unlike a Prius, where your vehicle does one thing well (commute) but optimizing for that limits what you can do with it. They feel that they have a commuter, a hauler, an off-road vehicle, a winter snow vehicle, and something that can tow. They can be self-sufficient under a wide range of circumstances. The Prius owner has to ask that friend with a truck if he can help them, pay someone else to do it, or just stay home.
And that’s not how status symbols work. It would be more accurate to say that luxury trucks are status symbols, not trucks. Nobody buys a truck as a status symbol, but maybe they buy a nice truck as one. The same statement applies to cars.