As Taleb puts it, executives at these companies don't have "skin in the game". Increasing shareholder value short-term is lucrative especially when their own compensations are tied to short-term stock value gain.
Another part is lack of progress in executive education. While engineering as a discipline have constantly improved by introspection. No such thing have happenned in business management area. It's all about maintaining the status quo and appearing in controls even when they are nowhere near it.