Capitalism. Need for money and results. I don't think that anybody wants to burnout anybody, it's just the pressure of the whole system I guess. Money pushes to do things fast. Shareholders and clients to keep happy.
In my opinion, this is the biggest flaw of the system. For many investors, a company is less about what it makes and more like a process to grow their money. Even when a company becomes profitable, there's always pressure to make it even more profitable quarter after quarter.
Would you keep your retirement funds in a company that doesn't grow?
Not everything needs to grow into the sky.
It would be worse than buying a bond: you'll get the risk of equity with the returns of a bond.
(Then again English is not my first language.)
While you might need to pay more and improve working conditions, would you be more efficient given the individual staff would spend more time being productive?