> When they step aside, however, the people who take over after them tend to be terrifying: zero empathy creatures who favor profit maximization over any and all human cost.
Seems to me like this has more to do with going public. When a company starts being treated as a money-printing machine, and its actual business is nothing but the implementation details of that machine, it either crumbles or it becomes a destructive force. Almost all companies whose products thrive and/or have a net positive effect on society have somebody at the helm who cares about what the company is actually doing. At a public company, investors are the ones at the helm, and they usually just want money. The company tends to switch from value-creation to value-extraction. If their dominance is entrenched enough that innovation and quality aren't very important anymore, they become vampiric. If it isn't, they slowly whither away.