I definitely concede that he popularized electric cars in the modern era (they predated gasoline cars in invention) and I'm grateful for that.
But just as the US managed to kill the electric car the first time, no actual social benefit of electric cars is accruing here in the US. Is that Tesla's fault? Somewhat.
At his core, Elon lives his values. I don't think they're socially motivated.
There is significant value to reducing pollution (in human health and flourishing).
That said, GP comment is intellectually dishonest. It doesn't account for the negative externalities of his choices/politics that, as you correctly identify, are tied to his values.