Rather that "earned income" is either extracted from the work of employees who have no choice but to work for less given the supply of labor vs demand, or it is extracted from one's unearned advantages (genes, better childhood, one's skillset happening to be in short supply, etc).
While the free market may be a good mechanism for allocation of resources and labor for production, I challenge the notion that it is a good mechanism for determining what individuals deserve to keep for themselves.
So what would you consider to be "earned advantages", given that things like "work ethic" and "moral behaviour" are direct consequences of the above?
It's fine that people make lots of money doing hard or rare work. Also great that people are loaning their saved money so companies can expand. It doesn't make sense for people to get wealthier for owning land.