I don't think the problem are rich people. I think the problem is probably poor people who try to extract more from the system ( by touring all food banks for example ). But you can always ask them ( the food banks ) if you are so skeptical.
2 other anecdata's :
In the US, people are converting their food stamps into soda, because soda is more tradeable ( more liquid ) than anything else. They sell it to SMBs to convert foodstamps into money.
I frequent the second hand stores which are partially aimed at the same group. They sell stuff, furniture, electronics and clothes for very low prices ( think € 3 to € 5 for a pair of pants, € 20 for a TV etc ). These shops use very very very adhesive price tags, to the point I need solvents to remove them.
I asked them about it : do people really try to switch price tags on € 3 items? Yes they do.