This is the expected outcome in capitalism. The general flow is money -> commodities -> greater money, and while it's not zero sum eventually that flow necessarily concentrates the money into entities that have the most money.

Once you become large enough, your "commodities" become other companies that are growing, enabling you to simply purchase growth and income directly with your capital.

In game design we call this a snowball effect or a "winners win more" system. It necessarily disadvantages everyone who is not at the top.

Unfortunately, there seems to be little appetite for limiting the capacity of capital to accumulate in only a few winners.