Was Gustavus Swift a captain or robber baron?

Swift was a captain of industry - he didn't treat his workers very well sometimes but that was pretty much his only flaw within his capitalism. Even then, he still took the time to properly educate his workers on all of the safety measures needed when it came to processing meats. He donated over 1 mil to the University of Chicago (which equates to about $22,700,000 today). He was very innovative and helped to develop the refrigerated box car, which enabled his ability to make sales from across the country.