> CEOs are not saints.

I concur, but...

> Jack Welch

You might have picked a better example than the guy who systematically hollowed out the American institution that was GE by evangelizing cartoonishly corporatist short-term MBA culture then leaving when the bill came due and washing his hands of that destructive movement that he propelled to the forefront of American business. There are tons of great leaders who did hurtful things in their private lives. I don't think that Jack Welch is exemplary of that first criterion (unless you count a legacy of financial engineering and grinding employees into pulp as leadership).