At the margin, that is.
Information in the modern world is virtually free, and well-defined tasks can be outsourced very cheaply, if need be. Don’t specialize in those.
Bias is everywhere, and overcoming bias yields great gains. Empirically, our biases stem strongly from our nationality, our language, and our cultural background. (It is, by the way, remarkable how much libertarianism is an Anglo-American phenomenon.)
To overcome those biases we should travel, spend some time living…
A simple theory of liberal arts education