Then you won't believe me if I say poor people do the stupidest thing when they get some extra money. Do you ever think of why poor people remain poor when rich people increase their wealth every second?
When poor people got some fortune and some extra cash they got it hand they tried to fulfill their desire. Some wanted to go to a fancy restaurant, purchasing something that is liability, buy some new clothes, decorate their home etc. None of this can generate money for them when that money can be invested in some assets. Rich people buy assets and let those assets pay for their desires.
This is not because poor people do not want to increase their income. Their lack of knowledge and fear of investment made them do these things.
Agree with your statement as if you are using money then more money will come to you. The wealthy people are wealthy because they create new way of earning through utilising their own money. Poor people think that if they spend their earning and reward then there will be nothing with them to buy expensive things but they forget that desires can be achieved anytime but once you spend money in useless activities then you will not able to increase your cash.
Sometimes they think that investment is a waste of time but they don't remember that with this investment you can avoid harsh situations, your life will not be burden for you.
May be they are not investing as they wants the happiness of their family to feed them in restaurant and to give them expensive cloths but they can also invest money because after some patience they will be able to give more comfort than this if they wisely invest in wise coin as it will offer them passive income.