Firstly inflation can lead to depreciation of the value of money and simply saving without investing money can result in loss of purchasing power over time. secondly rising commodity prices can hinder positive changes in lifestyle despite increasing salaries so investment is considered a better solution to increase the value of wealth. next the focus on survival and profit in investing is considered important, requiring careful thought and management to avoid potential failure.
In any case, careful thinking and management is really needed for everyone who doesn't want to experience failure, because increasing salaries and increasing commodity prices will balance things out in life so that everyone still has to try more to get more profits through whatever means. However, this certainly will not be easy enough if at one time inflation occurs which can depress the value of each person's money so that each person's struggle will increase and those who are able to survive such conditions will definitely not experience failure.