If companies that lower profits to benefit society as a whole are infringing on the freedom of their shareholders then any company that breaks the law to raise profits is basically just a criminal for hire. Ignorance is just irresponsible at that point.
And why should we let something that harms society remain legal? At the very least society ought to collect on the damages, and a company that's pushed all responsibility for deciding what is and isn't right to do onto the rest of society has no right to complain when society decides it ought to stop.
Of course there are people who want to abolish law in favour of bartering as well, but I think they think you're allowed to hit them in the face for thinking that.
Of course, perfect economics would assume maximizing long term shareholder value, which means not exploiting your customers. But "Shareholder Value" these days invariably means "short term share price" i.e. burn goodwill to make the shares spike in the next 5 years so they can be dumped profitably, and never mind what comes after.