I think Meghan wasn’t experienced enough or strategic enough to understand the difference between fame and influence.
There’s a certain level of fame/notoriety which does open doors and get you things like better restaurant bookings, freebies, media attention, upgrades, friends with fancy jets and holiday homes.
But it has a ceiling.
What you need to get things done - be a mover at a higher level is influence. And influence comes from respect, reputation and solid connections to others with influence.
Take George Clooney - he’s built his influence through a couple of decades of solid work and networking. He doesn’t have to make another movie again but he’s built his reputation that if he wanted to produce a project he’d be able to easily get it done. He’s got the fame for life too of course but being famous isn’t what opens doors to him in Hollywood and elsewhere.
So, Meghan and her agents who had been pushing a heavy boulder up a hill trying to her press, gigs and invitations to things for years were suddenly basking in her new notoriety and the doors it was opening.
What none of them understood is there was a ceiling for the notoriety and the influence that was getting stuff done was being borrowed from the royal family. It didn’t belong to Meghan and Harry as people, it belonged to the mystique, power and heritage of the institution.