The difference for me is that it's very easy to make a difference in this case: just don't go there. Don't spend money there, don't fuel the corruption and slavery and artificial prosperity of a crumbling city.

I don't argue against free trade with 3rd/2nd world nations -- in fact I think that our economic presence in China is a net beneficial thing over the years. However, that also means that I get to make a moral choice of where I spend my money. I don't believe that spending money in Dubai enriches anyone but the exploiters.