It really depends on their charter. People don't park money in a company simply to have the stock value drop or stay the same -- with exception of companies who pay out dividends.
Most companies charters talk about their relationship and obligations to the shareholders -- people don't invest in companies that don't intend on increasing in value.
Again, value doesn't have to be monetary. Shareholders has the right to expect return on their investment, yes. If the company delivers on their ambitions and values then that is the shareholders reward.
Most companies charters talk about their relationship and obligations to the shareholders -- people don't invest in companies that don't intend on increasing in value.