What is your notion of ethical behavior in the financial world?

Is greed good? Or does it need to be curbed? If so, how much? How should business people behave in ambiguous situations? Do they have any obligation to watch out for their customers? If so, how much should they watch out for their customers? How far do you expect knowledgeable people to go in putting the interests of the less knowledgable first, even when they know they can easily take them for everything they’ve got?