If you were the family facing malaria, and someone tried to donate the nets to you, would you sell them and donate the proceeds to their local soccer club?
What makes me value the former more than the latter is that it is closer to me. My utility for problems near me is much higher than for problems far away.
If my family would face malaria, I would care more about that than about faraway soccer clubs.
Also, I find that goodwill at a distance has a terrible track record. In a recent case, someone who was preaching effective altruism stole 10B instead. I'd rather he stayed poor and donated $10 to the local soccer club.
And certainly no dorky nerds unable to comprehend human reality and attempting to force everyone in their abstract streamlined toy-reality with Philosophy 101 word games will change my mind.