Businesses have basically two kinds of products : stock and what they say they actually make. The latter is domain-specific; you always would need an in-house expert as a leader to do it well. Selling stock is more general; an MBA from GE can do it effectively for Boeing or any other company. Thus in a world where CEO's hop around companies at the behest of Wall Street, stock promotion will always get more focus than the actual business. The incentives are broken and since Wall Street won't fix it all on it's own, that leaves Congress, which isn't any better.