Private firms and businesses are run by people. What you're essentially saying is that people should not care about how their actions harm society as long as it

Private firms and businesses are run by people. What you're essentially saying is that people should not care about how their actions harm society as long as it makes them a profit. "If society didn't want me to kill all of those people why didn't they stop me?" is not really a good look. Abdicating all of your personal responsibility to "society" is just an excuse to be a sociopath.