Wait. Baked into your thoughts here is an idea that each middle manager up the chain deserves “more” and that isn’t substantiated.
Managing a bunch of people may/mayn’t be harder than doing a difficult job w/ customers or manual labor or whatever. In some cases it’s a relatively kooshy desk job compared to “being in the trenches”.
Yes, sometimes decisions at higher levels has more ramifications. This is why we want good talent in those roles. But it’s a cultural choice that we decide to pay them 100s of times more.