There are plenty of modern day indentured servitude exploitations afoot: the leaked internal Amazon documents about it being business policy to keep engineering hires for less than two years, while preserving managers who fire them, is an example that springs to mind.
That's not exactly indentured servitude but it's too close to the Island of Pleasure (Pinocchio) for my comfort.
Master bedrooms and master records exist. People master their trades. And so on and so on.
My understanding is that the absolute vast majority of people of color couldn't care less if git branch was called master or main.
Though I like this sentence: "So it’s not so surprising that the masterminds at Sears came up with the master plan: As masters of their craft, they mastered the art of capturing the imagination of the American homebuyer."