I think the only thing that changes is that you might disaggregate the economic flowthrough from the other stuff, which may or may not change the upper bound, and may or may not have higher returns depending on the theory and particular trade off between giving opportunities. I think this matters more with things that seek to fundamentally shift society. Imagine anti imperial outfits getting more traction earlier on, or slavery, or feminism. It could plausibly have lasting effects out of proportion for longer than donating to a poor house?
I think the only thing that changes is that you might disaggregate the economic flowthrough from the other stuff, which may or may not change the upper bound, and may or may not have higher returns depending on the theory and particular trade off between giving opportunities. I think this matters more with things that seek to fundamentally shift society. Imagine anti imperial outfits getting more traction earlier on, or slavery, or feminism. It could plausibly have lasting effects out of proportion for longer than donating to a poor house?