It's not really something to be suspicious of. Cameras just don't know what colors things "actually" are, mostly because they don't know what color the lighting

It's not really something to be suspicious of. Cameras just don't know what colors things "actually" are, mostly because they don't know what color the lighting is. Auto exposure/auto white balance erases color casts or unusual skin colors. You can put a color calibration card in the picture to achieve a similar effect, but it's not as predictable.