Investing will never make you rich. Investing will only show you the path to rich when you have the ability to do some research analysis and precise understanding of where to invest, how to do it, how much the risk is likely to be and how much the return is likely to be. Just as investments can provide opportunities for growth and potential financial returns, It's can also damage your wealth. Especially sometimes the financial markets fluctuate unexpectedly causing you losses. Before investing, you must study the market dynamics, determine the risk management and keep in mind long-term investment thinking. Especially long-term planning can definitely make you rich.
You got a point but then investing can really make someone rich, only if knew where and when he will invest his money with. People who get rich in investing has a plan before they invest and do some in depth research. People should learn to make knowledgeable first in the things they want to invest with before giving away their money and also they need to accept that whatever they invested its either it will make them rich or not.
Those who understand the market of their investment and are knowledgeable about the pattern and cycle of that investment can have the possibility to get rich because he know when to buy and sell his investment and will gain continuous profit by simply repeating the process. Just like an event in the Bitcoin market where a trader short his trade by selling thousands of Bitcoin getting millions of dollar on the trade and rebuy his holding once the after-effect of his action of selling thousands of Bitcoin crashes the price and weak hands follow crashing the Bitcoin price even further. Then the guy rebuys his Bitcoin when the price crash deeper with $10m remaining profit in hand.