The problem is that the actual people who make decisions are -legally required- to seek as much profit as possible, for any public for-profit company. Saying you can punish the individual in charge for behaving immorally puts them in a catch-22. Suddenly, they're damned if they make a moral decision that costs shareholders money, and damned if they make an immoral decision in pursuit of profit.
We need a better system where profit isn't the final thing, or at least isn't the ONLY thing. The punishments need to come, somehow, from the whole company, but as is that's really only punishing the have-nots at the bottom of the stack, for any financial punishment for them will hurt much more than a punishment for those at the top, and obviously imprisonment is off the table unless -an individual- does something worth imprisonment.