Well, a company has to grow. If it doesn't, it'll be devoured by those who do and show pleasing YoY metrics to their shareholders and prospective investors. Simply imagine you are an investor. Which company would you put your money in? And since the world is limited a company cannot afford not growing if it wants to survive. Government regulation is impossible, because there are other governments which happily let their companies to grow and outcompete foreign companies.
Companies don't need to have shareholders.
* But plants need electrolytes to grow?! It's what they crave! *
Maybe that very shareholder market is the problem.