There is a huge downside for this to the charity: they have to waste time training "volunteers" who will probably never come back unless they're paid to be ther

There is a huge downside for this to the charity: they have to waste time training "volunteers" who will probably never come back unless they're paid to be there. Volunteers (as in, real volunteers) are much more likely to come back, minimizing the amount of time wasted on training. Volunteers are also more likely to have knowledge or experience in the area of the charity, whereas Exec's [gophers?] are likely to know nothing at all.