Agreed that putting emotionally-oriented people into research positions would be a risk, but let's be honest, they won't want to go there.

Regarding the second point, the whole goal of the post I was making above is to appeal to people's emotions to cause them to care about effectiveness.

The more emotionally-oriented people will not be good at determining effectiveness. But if we can get them to care about effectiveness, not cute puppies, that's where we can make a huge difference in their spending decisions. They would be highly unlikely to become leaders within EA, but their donations can then be powerfully shaped by EA recommendations