As ChristianKI says, you haven't actually answered the question.

the very obvious truth that the reason they are doing it is not to help [...] but to be seen helping [...] and to get the jolt of good feelings

Why is this "very obvious"? It isn't very obvious to me. (It looks to me as if there's a variety of different motivations, and at least some EAs seem clearly to be losing more personal utility by their donations than they could plausibly be gaining from being seen helping and from jolts of good feelings.)

Is what's very obvious to you specifically that EAs have those motivations, or that everyone does?

[...] we [...] We [...] we [...] we [...] We [...] we [...] We [...]

I have the impression that you keep saying "we" and meaning "you".