When a person has to feed his family, he needs to find a job but if companies are laying off and not accepting new applicants, he will do terrible things to provide. Some rob like you said looting the grocery stores.
when a person has responsibilities, they can go extra miles for them to be able to provide for their family and their needs, when the economics is bad it comes with so many things, the rate of unemployment increases and people with jobs are at the risk of losing their jobs, with high unemployment rate people will not be able to afford basic things like food, clothing and even sustaining their accommodation will be in doubt. All this thinking makes so many people go into crime just for them to meet up their need and be able to provide for their families.