If you were to read a some critiques of neoliberalism you would understand how free market utopianism can lead to authoritarianism/is used as a cover for it. The idea of the absolute duty to shareholders is newer that you would think. It’s an ideological standpoint. So already you are quoting a political line

Regulatory capture and monopoly are both things shareholders might want but are bad for society.

‘Just doing your job’ doesn’t cut it, we’re are part of a community and should feel a civic duty. That’s what i mean