Why study and learn what an assortment of crooks did in the past? Certainly, not to applaud their crimes but knowing a little bit more may help us learn a little bit more about urban survival techniques, what works, what doesn't work and why.
Natural phenomena are not moral facts and at the bottom, the
base, the fundamental parts of our existence within a society, we are
beings that function thanks to nature and nothing else: How or body
works in a biological or physiological sense depends on natural laws and
phenomena, and not in laws passed by parliament.
abstractions, morality, ethics, philosophy and even law and order come
afterwards, as a consequence of our ability to survive. Thus, what is
written in paper cannot be more important than life; survival is the
single most important thing for every living thing.
Under duress, dictatorships and opressive regimes people often have to buy and sell thing in the black market simply because there is no other way to survive. So we should not pass undue judgement, but learn about those experiences.