You care about what you have to say, and this phenomena at scale is why Twitter succeeds. The "important people" came after Twitter succeeded. And I'd argue that "their thoughts" amount to little more than a mixture self promotion, virtue signaling, and an occasional hot take. Twitter is likely more valuable to them than they are to Twitter, which is probably the driving factor behind the recent change.

Validation checkmarks will now cost $20/month. Seems like a reasonable and simple idea that can quickly chip into overhead costs while, itself, having near zero overhead. A million people being verified would be a quarter billion $ gross per year. And while a million may seem like a lot, it just circles back to where we began. They're monetizing narcissism, and that's a very safe bet.