If we're living in a devil's world - if one demon shaped our reality more than any other - whose world would it be? Paimon? Vassago? Ose? One name comes to mind more than any other -- that of MAMMON, associated with money and (at least in the West) the evil of money, its crimes and sins* - namely greed, exploitation, avarice.
How has Mammon been depicted over the years? Corpulence is one modern defining feature but even that isn't constant; indeed, the range of artistic depictions through the centuries is something to behold...