What figures/events in history do you think the significance of has been exaggerated?

I can think of many, but here’s one: the Mona Lisa. What’s so special about it? To quote Wikipedia,

Critic Walter Pater, in his 1867 essay on Leonardo, expressed this view by describing the figure in the painting as a kind of mythic embodiment of eternal femininity, who is “older than the rocks among which she sits” and who “has been dead many times and learned the secrets of the grave.”

Oh please, give me a break. That’s the kind of bullshit I wrote for Grade 10 art class. I’m sure there is someone out there who would call me ignorant, so I genuinely would like to know what makes this painting so great.