> Bill Gates' charitable work comes to mind. I wouldn't call him really a robber baron as the term implies wealth gained unfairly or from others involuntarily.
And yet, even Elizabeth Warren crippled social democratic policies are going too far. Paying taxes should be the litmus test for Bill Gates (and other billionaires), not throwing some scraps into unspecified charity.
Bill Gates is just a smarter Rockefeller that saw the writing on the wall and cashed out early. Call it an "ex-robber baron".