This is a stupid argument. Say we have 100 people in our economy, 90 of them $50k, 9 of them make $200k, and 1 person makes 1 million. Everyone invests 10% of their income in 'stoks' which cost $5/each.
Each of the 90 people invest $5k and have 1000 stoks.
Each of the 9 people invest $20k and have 4000 stoks.
The millionaire invests $100k and has 20,000 stoks.
The top 10% have 99.96% of the stoks.
It would be weird if the richest people didn't own most of the stocks. It doesn't necessarily mean there's a problem.
Except it's not 10%, or 1%. It's stats like "3 hedge fund makers make more than 140,000 teachers". The problem isn't disparity, it's the absolute mind boggling nature of it.