The person you are quoting did not express approval of Jack Welch. You are being downvoted for being unnecessarily argumentative and inflamatory, not for being wrong.
I disagree, learning how bad certain business people are is useful for society. Jack Welch ruined the lives of many families and played an explicit role in giving people cancer by dumping waste into public spaces.
And the OP wasn't contributing to the truth about Jack Welch by simply skipping past what a jackass he was. He was technically an engineer, and spent 30+ years ignoring engineering, integrity and common sense, for the sake of profits. That's faux engineer, at best.
Every single time assholes are mentioned, their assholery should be mentioned too. Let's not rewrite history for those unaware of how these "people" acted.
By your logic, the only thing that should be mentioned about Pol Pot is that he was a leader of Cambodia at one point.