The camber is definitely affected when the springs are compressed or extended. Any alignment of vehicles with independent suspensions is always specified at a given ride height. If the vehicle has more weight in it than it had when it was aligned, the wheels will have more negative camber. It's a function of the geometry of the suspension system.

In theory, you could easily wear out a set of tires on the inside edge if you loaded the vehicle to the maximum and drove it for 10K miles.

However, in this specific case, the vehicle's springs remain in the identical position that they were when aligned. They are simply attached to smaller tires. The suspension system doesn't see the smaller tires..............the body simply sits closer to the ground.