We can say it allocates capital to other people who then produce things; and so they “produce” at a distance. I think a better description of that is “control” (or “influence” if you are feeling more charitable). They control what value is produced by others, through the trust.
Does the trust really create anything useful on their own, though? Is there value inherent in their control/influence? Is that an optimal way of allocating resources?
Personally, I don’t think so - I think it’s inefficient, and mostly serves as a way for the wealthy to extract rent (so to speak) from society.
I will admit that this is the only world I have ever known, so it’s hard for me to envision an alternate future. But, I don’t think that means what we have today is really a good idea - and I think recognizing who actually produces “value” in society is an important realization to have.