Anyway, change very well can come from attacking people. Publically criticizing actions which are harmful is part of the way that we, as a society, build up the standards and norms by which we judge individuals' actions--and, ultimately, form legislation and other institutions to diminish harm and exploitation. The idea of "Don't hate the player, hate the game" is an attack on morality as such.

The anti-tobacco movement is a prime example of this, just as were the people who brought you Prohibition.

The Vast majority of capitalists struggle with ethical concerns because there's downside risk in behaving badly. It's an iterated version of "all problems stem from Man's inability to sit quietly in a room."