In my view, if you're driving a vehicle with a weight of over around 3,300-3,500 #, you're a threat to the rest of us. You're a threat from safety standpoint, and you're raising the price of our fuel due to your excessive consumption of it. Yeah, you're safe in a bank vault unless another bank vault or tank hits you, but you can usually get out of the way with a smaller, more maneuverable vehicle.
As far as going in the snow, we went to numerous ski slopes in snow storms in a rear wheel drive Fiat 124 sedan in the 70s. It had some kind of good combination of skinny tires, etc. that gave it good snow traction. It was about 2,200 #. Rusted out later, but good driving in the meantime.
Ralph