In any competitive market if one manufacturer decides to stray far from optimal behavior for such reasons, it won't even last a decade before their competitors overtake them (no matter if simply taking their marketshare, or with literal buyouts, or by taking over their assets in a bankruptcy/restructuring sale) and reverse those practices.
If the industry margin is e.g. 10%, then you might assume more beneficial practices that cost up to 10% if the company is privately held. Not more, and not anything significant if you're public - since if you do so, then it would be trivial for anyone with big resources (e.g. an investment bank or hedge fund) to buy your stock to gain a significant voting percentage, replace management with literally anyone else, and sell stock that immediately becomes so much more valuable.
I don't know why you're being downvoted. The board of directors exists to maximize profits, not create a stable society. As long as greater profits can be achieved by gutting the lower and middle classes, it will happen. To create change, the government must step in, which is almost impossible since the major corporations of this country have lobbied so much and spread so much propaganda.
If the industry margin is e.g. 10%, then you might assume more beneficial practices that cost up to 10% if the company is privately held. Not more, and not anything significant if you're public - since if you do so, then it would be trivial for anyone with big resources (e.g. an investment bank or hedge fund) to buy your stock to gain a significant voting percentage, replace management with literally anyone else, and sell stock that immediately becomes so much more valuable.