[everfree]

This centralizing effect is actually much more powerful in proof-of-work than proof-of-stake.

Anyone can stake and earn the same % rewards, regardless of how much they have. But if you're bankrolled with hundreds of millions of dollars, you get a much higher mining % return than the little guys because you can design and manufacture your own silicon (or get bulk discounts), colocate next to power generation, and buy electricity in bulk.