far more fair distribution of power

How do you define power? Do you mean decisions about code changes and hard forks? Do you mean Steem Power? If SP, what do you suggest? Should we be able to take SP from some accounts and give it to others or should we just change how new Steem Power is created to favor small accounts? If we favor small accounts, what's to prevent Sybil Attacks where one person can create a bunch of small accounts and take more of the reward pool than they should (especially with self-upvoting)? We've already seen this abuse with the flattened reward curve.

an increase in the number of witnesses

Do you mean the top 20 should be increased? If so, why? The role they serve is to secure the blockchain and create new blocks. Adding more is not needed for the protocol to function any better. Do you suggest the reward given to the top witnesses should be decreased? If so, some projects they fund might lose funding as it will become to expensive to maintain full API nodes and such. I'm not saying this isn't a bad idea, and maybe the rewards should decrease, I just want to make sure we consider the risks. If few people want to be full-time witnesses (it is a 24-hour a day on call job), then the entire Steem platform could have some systemic risks and instability.

the wealthy have far too much power on this site

Again, what do you mean by power? Do you mean in terms of flagging or determining who gets rewards and who doesn't because of their Steem Power votes on posts?

I don't think the world will ever be full egalitarian. Every attempt at it that I've seen throughout history has lead to violence and even poverty. Using stores of value as a way to influence systems is a much better approach than violence, IMO. It's also open to anyone who is willing to dedicate themselves to earning wealth. I see a dollar bill as a certificate of appreciation (to quote Rabbi Daniel Lapin) because you can only get one if you provide value to someone else.

At least, that's how it's supposed to work. Fiat currency controlled by central bankers and governments kind of screws that up.