Dubai is well-known for being a world hub of money-laundering while construction is notorious among fraud investigators as a way to make dirty money clean, make gray money vanish, and siphon off money for use elsewhere.
Any attempt to draw similarities between the irresponsible greedhead behavior of Dubai and that of New York City investments banks is of course spurious and defamatory. The investment banks are much more thuggish and organized in their looting than are the newcomer amateurs from Dubai.