I guess that if your main concern about living in DXB is about carrying marijuana, then i guess your place is not there.
To enjoy the expat life you have to understand you are a kind of guest in a new country, with different cultures and traditions (good and bad ones).
It's not the question about it being the best place in the world, it's just about your ability to accept those differences.
DXB is a very very superficial place, but it's also one of the best multicultural environment (depending on how you think you can benefit from it). If you think it's just a question of coming to get some money from silly Arabs, then you'd better return to your own dreamland...