Yes, a free market is about supply and demand and that's for both products and services. When the world shifts, even temporarily, so does that balance with the free market. If Disney can't get employees/cast members to work for them (and be fully staffed) at what they used to pay, then they'll either need to increase the pay scale or figure out how to do with less... or wait a while and hope the world shifts back. Their other dilemma is if they raise the pay scale for new hires, they're most likely going to raise it for everyone, since word will get out that the new people are getting paid more than the old people, and there will be those who either get annoyed and fester in their work or leave to what is clearly the new market rate somewhere else. I would guess that's why, initially, Disney was paying signing bonuses (along with a commitment to stay), since it's technically not raising their hourly rate, so they don't have to pass that increase on to everyone.