Crime can happen because there is intention and will, but for me the figure of 90% is too high because I am sure that the majority of them do not have the intention to do evil even though they are in difficult conditions. only a small percentage have the intention and then carry out looting, and in the end this action will harm themselves. The number of people continues to increase and the prices of commodity goods continue to increase, making competition for survival increasingly fierce. There are two solutions, namely trying harder to increase your income or reducing purchases to reduce expenses.
I believe is because of the way goods/food stuff have increase that also makes most people to involve in crime, if there's no money to buy what they need it changes their mindset and you saying work harder will help I feel it doesn't. Some people struggle their sweat out just to make something to at least feed for a day not to talk of being comfortable but still they don't get it. When you have a low pay I don't see why majority of those working won't go for an illegal way of making it big just to be comfortable, the society we find ourselves has a way of causing the citizens to think negative.