Are you into the Royal coronation?

Highly paid is relative, the tourism income from having a constitutional monarchy is believed to easily offset the civil list which taxpayers meet. Much of Royal wealth comes from land ownership which many wealthy people in the UK also benefit from.

Value for money is maybe more relevant and it appears that they are net contributors to the economy via tourism rather than a cost. That is in contrast to highly paid public service bosses whose contribution is more difficult to ascertain.