Now we are at the root to the argument. Unparalleled Beauty where there are Cheap BOYS. That I can agree with. Otherwise it is not even close and of course those places you mentioned you do not have to worry about pollution and crime to anywhere near the degree you do in Rio.
Take out the cheap boys and add in the ridiculous high price for nice Hotels etc , it falls way down the list.
Believe it or not most Tourists are not Sex Tourists although I agree the readers here certainly are.