I would add that one advantage of explicitly considering the indirect effects of charities is that it makes them more salient. I’d imagine most donors/funders would only really think of the direct benefits when deciding whether a project like CAP (or the charities themselves) is worthwhile, so it helps to highlight the other issues at stake. This consideration may outweigh the methodological concerns with ‘double-counting’ etc.
I would add that one advantage of explicitly considering the indirect effects of charities is that it makes them more salient. I’d imagine most donors/funders would only really think of the direct benefits when deciding whether a project like CAP (or the charities themselves) is worthwhile, so it helps to highlight the other issues at stake. This consideration may outweigh the methodological concerns with ‘double-counting’ etc.