I'm not going to deny the existence of comparative advantage. At the same time, I'm not going to claim we live in a passionless universe either. If a hedge fund manager desires to beat the market, she is going to study the financials, etc. If she is also passionate about boiler chickens, why would she outsource that to someone else? Unless, of course, her passion for the market is greater than her love for boiler chickens. And, if that's the case, can you say she cares for boiler chickens or only wishes to care for boiler chickens. There is a huge difference. As they say, "The road to hell is paved with good intentions."
As far as HSUS is concerned, I'm viewing the issue from my context. EAF wanted feedback, and I gave it. More than likely I'm wrong and perhaps the greater good is being served; although, it would help if that were being measured in some way.
Finally, from what I've seen, I do believe many non-profits could use a hand from people with quantitative backgrounds. If those people ascribe to EA, they'll never join a non-profit.