Not too long ago the US government put pressure on all financial institutions to stop processing payments for Wikileaks without them ever having been convicted of committing any crimes. That's just a single example plucked out of the sky, regardless of your feelings about that organization.
The great advantage that we get from a decentralized, opt-in trust infrastructure is that we have an avenue around these unjust and extralegal encroachments.
Having said all that, even if you don't care about politics, there are countless examples of centralized entities changing ownership, or changing strategies, and their users pay the price. See: Twitter taking people's usernames.
You might be fine with dealing with living at the whims of billionaires but I want my digital life to be more durable than that.