I started writing a reply echoing your question: "What makes those things more 'helpful'?"

I don't think you missed the first part of my question "If that's the claim". I can certainly think up a vague definition of helpful that applies, but what to I gain by using that label? I can surely better label than helpful if I want to speak about behavior that society generally associates with femininity.

But in the second article, it's about those careers being more useful towards romance. The paragraph break seems to indicate a slight change of context, so I assume now that that's what this helpful referred to.

The issue is basically that you either agree that the first post is wrong and non-STEM careers get picked for a different reason than being perceived as being helpful or that there a way to see non-STEM subjects as more "publicly visible prosocial behavior".

It's bad to try to be to vague to be wrong.