I never trust these kinds of studies really demonstrate what they claim. I'd like to see the same experiment conducted by scientists who themselves believe the "unhelpful" puppet is admirable with children whose parents believe that as well.

Well, there is some conflation in the article around morality and the innate empathy/altruism found in humans (and apes). There's a lot of semantic arguments to be made when you use words like right, wrong, good, bad. Like this:

At the same time, though, people everywhere have some sense of right and wrong. You won’t find a society where people don’t have some notion of fairness, don’t put some value on loyalty and kindness, don’t distinguish between acts of cruelty and innocent mistakes, don’t categorize people as nasty or nice.

Right and wrong have different meanings depending on the culture we're talking about. I imagine the Spartans definitely valued loyalty, but they sure as heck didn't shun acts of cruelty.