Investments will incur losses, without that it is never an investment at all.

Of course the point of savings is to provide funds in case of emergency. You might be able to milk that Bank's fixed deposit rate but it will not lead to huge returns. On the contrary investment carry a higher risk:reward ratio and they might be able to give you higher profits depending on the type of asset.

Hence we need both of these to be able to sustain a proper future.