Of course it matters if a middleman is skimming off 70% of the revenue in a given market.
> it is incredibly efficient
On what planet is a loss of 70% of the resources to the matching process between buyers and sellers "incredibly efficient"?
> What matters is how much they are earning compared to the next best alternative.
Right, which is why it is illegal to prevent there from being a next best alternative via anti-competitive practices which is precisely was was proven in this trial after a detailed examination of the evidence.