There is a fundamental difference here that can't be ignored. In that pie chart from SPR that you show the different percentages represent large mining farms or individuals that can take advantage of the absence of pools and monopolize the network from a rewards perspective, these people are getting all the coins, some mining with optimized miners.
From a rewards perspective?
But a person who invests thousands of $ should absolutely get more reward. This is a good correlation. You seem to have a problem with that?
We here have nothing against rich people. We have nothing against large investors. In fact, we want to attract them.
If your farm is securing the blockchain it earns a percentage based on the blocks it finds.
How is this "taking advantage"?