I don't believe that is true. If your company is sufficiently away from its market optimum, i.e. optimal long term profit, another company will outperform, and you will be forced out of the market. Then, all your employees have no job anymore. Not sure that is ethical.

It is therefor the charge of the political system to set boundary conditions to shape the optimal point to be ethical (and, at the same time, capable to survive in the world) That's, for example, the idea behind social market economy as in Germany.