They borrow money to buy assets before bull run
They use borrowed money to make more money.
If u dont learn how to use DEbt to create wealth then u stay poor all ur life.
U never use loaned funds just to buy things for u if u dont have ur own money enough.
First rule you use loaned money to make money.
Stocks and crypto u borrow always before bull run and sell ur assets even the real estate when markets are booming u pay back the loan u wait the market drops u repeat the process.
If anyone start doing this no profit for wall street wealthy guys anymore thats how powerful is investing money what u borrowed.
The first and possibly most important point you're overlooking is the fact that "wall street" generally consists of people who are already rich, or at least managing the funds of the rich. When you have enough money to live a very expensive lifestyle and could do so many times over, then you usually have lots of spare cash. That spare cash often accumulates to more than an average person would ever earn and it can be invested without fear, as there is enough space capacity that they could lose a lot of money without a material impact. All that invested money, sitting untouched, generates both capital gains (prices go up on owned shares) and regular dividends which are usually automatically set up to buy more. Basically, the rich gets richer - a well known phrase by now.