Hope the second post explained it more clearly, tropezienne.
If you were in, say, Saudi or Iran, you would know what kind of place you're in. The expected behaviour is very clearly set out, whether you approve of it or not.
The problem in Dubai is that it wants to be seen as forward thinking, so it is actually very permissive, but that conflicts with a lot of Islamic values. There is a tension there.
I'm no cultural relativist, or apologist for Sharia law, which I think is misogynistic to the core, and backwards. But it's not as simple as saying "The UAE is governed by Sharia law, and is therefore incompatible with western ideals of human rights" - it's a little more nuanced than that, I think.