This is a quite competitive market, far from monopolies. So let them do what their incentives and company culture lead them to. The reality is that often such leaders can come out net positive on a personal level even if they drive the company to the ground because they extracted out everything in a short term ("eating the seed corn"), then will go somewhere else. But at least the company and its products disappear. It's evolution. It's not always better to save them by being some kind of internal hero.