From what I garnered from a few documentaries here and there long ago, Mehdi Ali was responsible for driving other companies into the ground too, and escaping t

From what I garnered from a few documentaries here and there long ago, Mehdi Ali was responsible for driving other companies into the ground too, and escaping those ships richer than he was when he got on them. How does this happen and why is it allowed to? Are these kinds of CEOs the designated cleanup people who get sent in after a company has been decided to get killed off and they're the [insert butcher analogue for stripping the leftover parts of a corpse]?