[mewpmewp2]

And even if a correlation was to be found on average, it doesn't really say anything about the individuals or median levels or many other nuances.

I think we can all agree on the base level that there are intelligent people who are kind, and there are intelligent people who are very not kind. And then there's intelligent people who are kind only for the reasons that it makes them succeed, not for pure altruistic reasons.

Not to mention if intelligent people are able to make more income and therefore have the capability to share a portion of it while less intelligent will try to get by and don't have time or resources to help others.

[svnt]

They claimed in the first study to control for income, but I wonder how effective that is when you are considering a household of people a majority of the time. The person who donates may not be the person with higher general intelligence or higher income; only someone in their household must have the characteristic.