This scene occurs after Gatsby's party showing that everyone was so drunk and in the moment. feeling like they are better than everyone else and not caring
Can you give a little more detail ?
Based on the given statement above, in my opinion and own observation, I would say that I agree. People work because they need to sustain their daily needs, and because of that need, most people try to take as much as they can to support it. Giving back becomes little because there is only little that is left from work too. Hope this answers your question.