Check this out:

@dalz/top-hive-earners-by-category-or-authors-curators-witnesses-dao-dhf-or-june-2020

The top 20 earned ~58,000 HIVE equivalents in June 2020. The total was 800,000 in that time. It's surprising how it isn't top-heavier than that!

There is apparently a very long tail of smaller earners. The shape of the graph in the article actually suggests that.

The situation would be quite hopeless if it weren't for the author reward pool.

What I believe would be in the best interests of stakeholders to do is rotate the top 20 witness positions more aggressively.