And yet this year I see people standing outside the front door with a box of masks, ensuring everyone is masked before entering, and greeting people at the same time.

The fact that they were hired back during a pandemic isn't a good counter-argument, greeters obviously add very small value to the company under normal circumstances.

Was there a corresponding increase in minimum wage?

No, but I don't think that makes the point any less relevant.

Well either the greeters became more expensive or their utility dropped, if we're taking a simplistic market-based approach. So which is it?