Are people who feel “powerful” in large vehicles just really insecure?

I’ve never understood why people associate size on the road with power. I’ve driven pickup trucks that are literally huge and I’ve never once felt a sense of power or grandeur. It’s just a normal car for me?

But it seems like the majority of people get in a large vehicle and derive a huge sense of superiority and power from being in this. And they’ll act like they own the road.

Do these people lack power in real life, is that why they feel powerful in a large vehicle on the road?