It's widely known that, even though btc is more widely distributed than other crypto projects, by the standards of any fiat money, or even of gold, the distribution of btc is astoundingly centralized.
Thought experiment: imagine that 90% of the gold in the world was owned by Russia, in Putin's private vault; the other ten percent was spread proportionately as it currently is, e.g., if Peter Schiff currently has .0000001 of it, then in the thought experiment he'd have .0000001 of 10%. In this scenario, how appealing would gold be as a store of value?
My sense is that people would be a lot less excited about the prospect of gold-as-sound-money if one entity controlled so much of it. In different language, Putin would be a one-man Cantillon effect: the desires / tastes of Putin would disproportionately alter the value of things in the world, as encoded in the price of gold. Even if Putin never spent any of his horde, the looming threat that the representation of value could be so skewed by a single actor would be off-putting.
No single agent owns 90% of btc, of course, but the broad idea still holds. Bitcoiners often use this same distribution argument as one line of evidence for how Ethereum is a scam; and as a reason for why no new technologically-superior successor to btc could ever emerge: the new coin would never be able to get anywhere close to as fair a distribution as btc did. Nobody's gonna get behind a new coin where some VC fund pre-mined a third of them. Not in the long-term, anyway.
All that said -- is btc's distribution a concern for you? If not, why not? If so, is there anything to be done?