Let me tell you a cruel reality: most of the middle class don't understand how the world works.
Most of their income and achievements are due to the dividends of the times, but they mistakenly believe that they are all obtained by their own strength.
In a society, as long as you don't control production resources, as long as you survive by selling your intelligence or physical strength, no matter what class you are in, you are just an object that can be harvested at any time.
As long as you have a wrong judgment, wrong investment, and find the wrong partner, they will bring you countless problems and eventually consume all your accumulated dividends of the times.