Any "needs" apart from the basic physical ones are self created by humans. It is entirely up to you if you master your mind to determine what "needs" you have.

People need something to give them hope/meaning in life. For some this is an edition of a very old book, for some this is looking at a statue, for some this is cold hard $$$ and pretty things, for some this is relationships with other humans etc. etc.

Other than religion; upbringing, environment, a good education, local culture, secular laws, empathy for other humans beings, fear of being caught all contributes to us conforming to being a "good person", as most commonly understood by the general populace.

I think this pretty much sums it up.