Lots of people love to throw around the word "shareholders" like it's a pejorative. The word seems to carry connotations of greedy old Uncle Scrooge, Uncle Pennybags, or some spoiled Saudi Prince. That's a highly distorted view.
Lots of "shareholders" are people's retirement funds, pensions, and the like. When those funds finally pay out, they get taxed as income just like for everybody else.