Would you justify this if one person is needy so that he can do unethical practice? Happiness is not an item you can buy, it is something you can feel. These can be both monetary and non-monetary. If you execute what makes you happy, you?
My sisters and I motivated them to work hard. For example a twenty-six year old Brooklyn America schoolteacher kept working despite winning sixty-five million dollars. It is perhaps conceivable in a century gone by where people grew all their food and believed in witches, that a human could forge a fulfilling existence without the need of money to satisfy our desires.
The things which are basics for human survival like food, clothes, shelter etc are the needs. Does society insist the people to go unethical? Emotions developed centuries back when there was no money, competition for enormity, or life advancements.