[rcoder]

I wouldn't minimize the potential contribution of the teams building + evaluating the models, either.

If you have an entire office full of "lib-left" hackers, executives, et. al., their biases are going to have an effect on the models they build, irrespective of source material.

As an example: there's a lot of well-established science in support of anthropocentric climate change. And yet, interpretations (or even acceptance) of that science have become political dogma.

I think it's probably safe to say that engineers broadly trust science, whatever their personal views on social or economic policy. So models that are trained and evaluated on following scientific consensus will easily be tagged as "left-leaning."