Statues are already stiff and are unlikely to stiffen more at the sight of a naked female celeb. I think that would be classed as indecent exposure at the very least.
Plus it would distract me from my shopping list in tescos.
How does the sight of naked people put folks off from eating? Does the sight of a half of a calf, or pig, or lamb in the butchers' shop put one off from eating? I don't get it. I'm vegetarian and the sight of meat does not bother me the least bit.