[mtmail]

If you're talking about those running their own charity https://www.reddit.com/r/technology/comments/ech9sj/googles_... has a good explanation of the money flow.

[troydavis]

Even in this example, the donor is much worse off than they were before donating. That is, the donor didn’t benefit.

Perhaps donating to one’s own foundation is only 90% as good as immediately donating to the final source, but it’s infinitely better for society and worse for the donor than taking no action.