I'm asking a specific question though. You said "the poor become poorer."

So let's say Person A has 5 Steem Power today. A few months from now they will have a little more than 5 Steem Power. I'm confused how that individual became poorer? Just because the poor can't make as much as the rich, that doesn't make them "more poor," does it?

There will be more new users, but that doesn't mean someone today becomes more poor than they were yesterday. The value in terms of purchasing power is defined by supply and demand for STEEM and SBD. If it goes up, those with the largest share make the most. If it goes down, they lose the most. No individual "becomes poorer" because someone else becomes richer.

If I give one person $100 and another person $5, the person I gave $5 to didn't become poorer because of the person who got $100.