Aw, that's very charitable.
Maybe this is a Beta thing. My SLE son, in high school, had a friend who I was sure occasionally stole from him (i.e., money he left out when the friend was over). (Also he would break things occasionally. Like the nice light-up key board on our computer my son found at a yard sale. I liked that useful keyboard. No surprise at all it that broke when my son's friend was over! But my son refused my implication his friend did it on purpose). This disrespect for my son's things really bothered me (it felt like disrespect for my son). However, I was very restrained in what I said to my son (who often saw things differently than me). In this case, when I brought it up to my son, my son was VERY reluctant to accuse his friend. I do know the friend's much-married single-mom was not very able at providing (even on a low income you can provide well if you have the knack; but she didn't have it; and I'd have to say she was materially-neglectful with her boys*) while my son was well -provided for (between my knack, my indulgence, and his Dad and uncle's gernerous provision, he had what he wanted). So even though I could have pressed the point and showed my son how obvious it was, I let it go.
*(Once I picked up my son at 8pm on a school night and she was just putting out supper for her 3 (active!) boys. It was
pancakes from a mix and a bottle of cheap syrup. That's it! And there
wasn't enough. The boys were arguing over the pancakes! Because they were hungry!)