This article provides a glimpse into the reality of life for some pickpockets, and it's not a nice picture. They are victims and receive little benefit from the money they scam or steal from tourists, as it goes to organized crime networks. This article is similar in tone to the award-winning Gypsy Child Thieves documentary exposé that was produced by BBC.
http://www.thedailybeast.com/articles/2016/07/05/meet-the-pickpocket-slaves-of-europe.html
Hopefully the authorities can find some way to stop this.